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Stanley Milgram Shock Experiment

Saul McLeod, PhD

Editor-in-Chief for Simply Psychology

BSc (Hons) Psychology, MRes, PhD, University of Manchester

Saul McLeod, PhD., is a qualified psychology teacher with over 18 years of experience in further and higher education. He has been published in peer-reviewed journals, including the Journal of Clinical Psychology.

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Olivia Guy-Evans, MSc

Associate Editor for Simply Psychology

BSc (Hons) Psychology, MSc Psychology of Education

Olivia Guy-Evans is a writer and associate editor for Simply Psychology. She has previously worked in healthcare and educational sectors.

On This Page:

Stanley Milgram, a psychologist at Yale University, carried out one of the most famous studies of obedience in psychology.

He conducted an experiment focusing on the conflict between obedience to authority and personal conscience.

Milgram (1963) examined justifications for acts of genocide offered by those accused at the World War II, Nuremberg War Criminal trials. Their defense often was based on obedience  – that they were just following orders from their superiors.

The experiments began in July 1961, a year after the trial of Adolf Eichmann in Jerusalem. Milgram devised the experiment to answer the question:

Could it be that Eichmann and his million accomplices in the Holocaust were just following orders? Could we call them all accomplices?” (Milgram, 1974).

Milgram (1963) wanted to investigate whether Germans were particularly obedient to authority figures, as this was a common explanation for the Nazi killings in World War II.

Milgram selected participants for his experiment by newspaper advertising for male participants to take part in a study of learning at Yale University.

The procedure was that the participant was paired with another person and they drew lots to find out who would be the ‘learner’ and who would be the ‘teacher.’  The draw was fixed so that the participant was always the teacher, and the learner was one of Milgram’s confederates (pretending to be a real participant).

The learner (a confederate called Mr. Wallace) was taken into a room and had electrodes attached to his arms, and the teacher and researcher went into a room next door that contained an electric shock generator and a row of switches marked from 15 volts (Slight Shock) to 375 volts (Danger: Severe Shock) to 450 volts (XXX).

The shocks in Stanley Milgram’s obedience experiments were not real. The “learners” were actors who were part of the experiment and did not actually receive any shocks.

However, the “teachers” (the real participants of the study) believed the shocks were real, which was crucial for the experiment to measure obedience to authority figures even when it involved causing harm to others.

Milgram’s Experiment (1963)

Milgram (1963) was interested in researching how far people would go in obeying an instruction if it involved harming another person.

Stanley Milgram was interested in how easily ordinary people could be influenced into committing atrocities, for example, Germans in WWII.

Volunteers were recruited for a controlled experiment investigating “learning” (re: ethics: deception). 

Participants were 40 males, aged between 20 and 50, whose jobs ranged from unskilled to professional, from the New Haven area. They were paid $4.50 for just turning up.

At the beginning of the experiment, they were introduced to another participant, a confederate of the experimenter (Milgram).

They drew straws to determine their roles – learner or teacher – although this was fixed, and the confederate was always the learner. There was also an “experimenter” dressed in a gray lab coat, played by an actor (not Milgram).

Two rooms in the Yale Interaction Laboratory were used – one for the learner (with an electric chair) and another for the teacher and experimenter with an electric shock generator.

The “learner” (Mr. Wallace) was strapped to a chair with electrodes.

After he has learned a list of word pairs given to him to learn, the “teacher” tests him by naming a word and asking the learner to recall its partner/pair from a list of four possible choices.

The teacher is told to administer an electric shock every time the learner makes a mistake, increasing the level of shock each time. There were 30 switches on the shock generator marked from 15 volts (slight shock) to 450 (danger – severe shock).

The learner gave mainly wrong answers (on purpose), and for each of these, the teacher gave him an electric shock. When the teacher refused to administer a shock, the experimenter was to give a series of orders/prods to ensure they continued.

There were four prods, and if one was not obeyed, then the experimenter (Mr. Williams) read out the next prod, and so on.

Prod 1 : Please continue. Prod 2: The experiment requires you to continue. Prod 3 : It is absolutely essential that you continue. Prod 4 : You have no other choice but to continue.

These prods were to be used in order, and begun afresh for each new attempt at defiance (Milgram, 1974, p. 21). The experimenter also had two special prods available. These could be used as required by the situation:

• Although the shocks may be painful, there is no permanent tissue damage, so please go on’ (ibid.)
• ‘Whether the learner likes it or not, you must go on until he has learned all the word pairs correctly. So please go on’ (ibid., p. 22).

65% (two-thirds) of participants (i.e., teachers) continued to the highest level of 450 volts. All the participants continued to 300 volts.

Milgram did more than one experiment – he carried out 18 variations of his study.  All he did was alter the situation (IV) to see how this affected obedience (DV).

Conclusion 

The individual explanation for the behavior of the participants would be that it was something about them as people that caused them to obey, but a more realistic explanation is that the situation they were in influenced them and caused them to behave in the way that they did.

Some aspects of the situation that may have influenced their behavior include the formality of the location, the behavior of the experimenter, and the fact that it was an experiment for which they had volunteered and been paid.

Ordinary people are likely to follow orders given by an authority figure, even to the extent of killing an innocent human being.  Obedience to authority is ingrained in us all from the way we are brought up.

People tend to obey orders from other people if they recognize their authority as morally right and/or legally based. This response to legitimate authority is learned in a variety of situations, for example in the family, school, and workplace.

Milgram summed up in the article “The Perils of Obedience” (Milgram 1974), writing:

“The legal and philosophic aspects of obedience are of enormous import, but they say very little about how most people behave in concrete situations. I set up a simple experiment at Yale University to test how much pain an ordinary citizen would inflict on another person simply because he was ordered to by an experimental scientist. Stark authority was pitted against the subjects’ [participants’] strongest moral imperatives against hurting others, and, with the subjects’ [participants’] ears ringing with the screams of the victims, authority won more often than not. The extreme willingness of adults to go to almost any lengths on the command of an authority constitutes the chief finding of the study and the fact most urgently demanding explanation.”

Milgram’s Agency Theory

Milgram (1974) explained the behavior of his participants by suggesting that people have two states of behavior when they are in a social situation:

• The autonomous state – people direct their own actions, and they take responsibility for the results of those actions.
• The agentic state – people allow others to direct their actions and then pass off the responsibility for the consequences to the person giving the orders. In other words, they act as agents for another person’s will.

Milgram suggested that two things must be in place for a person to enter the agentic state:

• The person giving the orders is perceived as being qualified to direct other people’s behavior. That is, they are seen as legitimate.
• The person being ordered about is able to believe that the authority will accept responsibility for what happens.

According to Milgram, when in this agentic state, the participant in the obedience studies “defines himself in a social situation in a manner that renders him open to regulation by a person of higher status. In this condition the individual no longer views himself as responsible for his own actions but defines himself as an instrument for carrying out the wishes of others” (Milgram, 1974, p. 134).

Agency theory says that people will obey an authority when they believe that the authority will take responsibility for the consequences of their actions. This is supported by some aspects of Milgram’s evidence.

For example, when participants were reminded that they had responsibility for their own actions, almost none of them were prepared to obey.

In contrast, many participants who were refusing to go on did so if the experimenter said that he would take responsibility.

According to Milgram (1974, p. 188):

“The behavior revealed in the experiments reported here is normal human behavior but revealed under conditions that show with particular clarity the danger to human survival inherent in our make-up.

And what is it we have seen? Not aggression, for there is no anger, vindictiveness, or hatred in those who shocked the victim….

Something far more dangerous is revealed: the capacity for man to abandon his humanity, indeed, the inevitability that he does so, as he merges his unique personality into larger institutional structures.”

Milgram Experiment Variations

The Milgram experiment was carried out many times whereby Milgram (1965) varied the basic procedure (changed the IV).  By doing this Milgram could identify which factors affected obedience (the DV).

Obedience was measured by how many participants shocked to the maximum 450 volts (65% in the original study). Stanley Milgram conducted a total of 23 variations (also called conditions or experiments) of his original obedience study:

In total, 636 participants were tested in 18 variation studies conducted between 1961 and 1962 at Yale University.

In the original baseline study – the experimenter wore a gray lab coat to symbolize his authority (a kind of uniform).

The lab coat worn by the experimenter in the original study served as a crucial symbol of scientific authority that increased obedience. The lab coat conveyed expertise and legitimacy, making participants see the experimenter as more credible and trustworthy.

Milgram carried out a variation in which the experimenter was called away because of a phone call right at the start of the procedure.

The role of the experimenter was then taken over by an ‘ordinary member of the public’ ( a confederate) in everyday clothes rather than a lab coat. The obedience level dropped to 20%.

Change of Location:  The Mountain View Facility Study (1963, unpublished)

Milgram conducted this variation in a set of offices in a rundown building, claiming it was associated with “Research Associates of Bridgeport” rather than Yale.

The lab’s ordinary appearance was designed to test if Yale’s prestige encouraged obedience. Participants were led to believe that a private research firm experimented.

In this non-university setting, obedience rates dropped to 47.5% compared to 65% in the original Yale experiments. This suggests that the status of location affects obedience.

Private research firms are viewed as less prestigious than certain universities, which affects behavior. It is easier under these conditions to abandon the belief in the experimenter’s essential decency.

The impressive university setting reinforced the experimenter’s authority and conveyed an implicit approval of the research.

Milgram filmed this variation for his documentary Obedience , but did not publish the results in his academic papers. The study only came to wider light when archival materials, including his notes, films, and data, were studied by later researchers like Perry (2013) in the decades after Milgram’s death.

Two Teacher Condition

When participants could instruct an assistant (confederate) to press the switches, 92.5% shocked to the maximum of 450 volts.

Allowing the participant to instruct an assistant to press the shock switches diffused personal responsibility and likely reduced perceptions of causing direct harm.

By attributing the actions to the assistant rather than themselves, participants could more easily justify shocking to the maximum 450 volts, reflected in the 92.5% obedience rate.

When there is less personal responsibility, obedience increases. This relates to Milgram’s Agency Theory.

Touch Proximity Condition

The teacher had to force the learner’s hand down onto a shock plate when the learner refused to participate after 150 volts. Obedience fell to 30%.

Forcing the learner’s hand onto the shock plate after 150 volts physically connected the teacher to the consequences of their actions. This direct tactile feedback increased the teacher’s personal responsibility.

No longer shielded from the learner’s reactions, the proximity enabled participants to more clearly perceive the harm they were causing, reducing obedience to 30%. Physical distance and indirect actions in the original setup made it easier to rationalize obeying the experimenter.

The participant is no longer buffered/protected from seeing the consequences of their actions.

Social Support Condition

When the two confederates set an example of defiance by refusing to continue the shocks, especially early on at 150 volts, it permitted the real participant also to resist authority.

Two other participants (confederates) were also teachers but refused to obey. Confederate 1 stopped at 150 volts, and Confederate 2 stopped at 210 volts.

Their disobedience provided social proof that it was acceptable to disobey. This modeling of defiance lowered obedience to only 10% compared to 65% without such social support. It demonstrated that social modeling can validate challenging authority.

The presence of others who are seen to disobey the authority figure reduces the level of obedience to 10%.

Absent Experimenter Condition 

It is easier to resist the orders from an authority figure if they are not close by. When the experimenter instructed and prompted the teacher by telephone from another room, obedience fell to 20.5%.

Many participants cheated and missed out on shocks or gave less voltage than ordered by the experimenter. The proximity of authority figures affects obedience.

The physical absence of the authority figure enabled participants to act more freely on their own moral inclinations rather than the experimenter’s commands. This highlighted the role of an authority’s direct presence in influencing behavior.

A key reason the obedience studies fascinate people is Milgram presented them as a scientific experiment, contrasting himself as an “empirically grounded scientist” compared to philosophers. He claimed he systematically varied factors to alter obedience rates.

However, recent scholarship using archival records shows Milgram’s account of standardizing the procedure was misleading. For example, he published a list of standardized prods the experimenter used when participants questioned continuing. Milgram said these were delivered uniformly in a firm but polite tone.

Analyzing audiotapes, Gibson (2013) found considerable variation from the published protocol – the prods differed across trials. The point is not that Milgram did poor science, but that the archival materials reveal the limitations of the textbook account of his “standardized” procedure.

The qualitative data like participant feedback, Milgram’s notes, and researchers’ actions provide a fuller, messier picture than the obedience studies’ “official” story. For psychology students, this shows how scientific reporting can polish findings in a way that strays from the less tidy reality.

Critical Evaluation

Inaccurate description of the prod methodology:.

A key reason the obedience studies fascinate people is Milgram (1974) presented them as a scientific experiment, contrasting himself as an “empirically grounded scientist” compared to philosophers. He claimed he systematically varied factors to alter obedience rates.

However, recent scholarship using archival records shows Milgram’s account of standardizing the procedure was misleading. For example, he published a list of standardized prods the experimenter used when participants questioned continuing. Milgram said these were delivered uniformly in a firm but polite tone (Gibson, 2013; Perry, 2013; Russell, 2010).

Perry’s (2013) archival research revealed another discrepancy between Milgram’s published account and the actual events. Milgram claimed standardized prods were used when participants resisted, but Perry’s audiotape analysis showed the experimenter often improvised more coercive prods beyond the supposed script.

This off-script prodding varied between experiments and participants, and was especially prevalent with female participants where no gender obedience difference was found – suggesting the improvisation influenced results. Gibson (2013) and Russell (2009) corroborated the experimenter’s departures from the supposed fixed prods. 

Prods were often combined or modified rather than used verbatim as published.

Russell speculated the improvisation aimed to achieve outcomes the experimenter believed Milgram wanted. Milgram seemed to tacitly approve of the deviations by not correcting them when observing.

This raises significant issues around experimenter bias influencing results, lack of standardization compromising validity, and ethical problems with Milgram misrepresenting procedures.

Milgram’s experiment lacked external validity:

The Milgram studies were conducted in laboratory-type conditions, and we must ask if this tells us much about real-life situations.

We obey in a variety of real-life situations that are far more subtle than instructions to give people electric shocks, and it would be interesting to see what factors operate in everyday obedience. The sort of situation Milgram investigated would be more suited to a military context.

Orne and Holland (1968) accused Milgram’s study of lacking ‘experimental realism,”’ i.e.,” participants might not have believed the experimental set-up they found themselves in and knew the learner wasn’t receiving electric shocks.

“It’s more truthful to say that only half of the people who undertook the experiment fully believed it was real, and of those two-thirds disobeyed the experimenter,” observes Perry (p. 139).

Milgram’s sample was biased:

• The participants in Milgram’s study were all male. Do the findings transfer to females?
• Milgram’s study cannot be seen as representative of the American population as his sample was self-selected. This is because they became participants only by electing to respond to a newspaper advertisement (selecting themselves).
• They may also have a typical “volunteer personality” – not all the newspaper readers responded so perhaps it takes this personality type to do so.

Yet a total of 636 participants were tested in 18 separate experiments across the New Haven area, which was seen as being reasonably representative of a typical American town.

Milgram’s findings have been replicated in a variety of cultures and most lead to the same conclusions as Milgram’s original study and in some cases see higher obedience rates.

However, Smith and Bond (1998) point out that with the exception of Jordan (Shanab & Yahya, 1978), the majority of these studies have been conducted in industrialized Western cultures, and we should be cautious before we conclude that a universal trait of social behavior has been identified.

Selective reporting of experimental findings:

Perry (2013) found Milgram omitted findings from some obedience experiments he conducted, reporting only results supporting his conclusions. A key omission was the Relationship condition (conducted in 1962 but unpublished), where participant pairs were relatives or close acquaintances.

When the learner protested being shocked, most teachers disobeyed, contradicting Milgram’s emphasis on obedience to authority.

Perry argued Milgram likely did not publish this 85% disobedience rate because it undermined his narrative and would be difficult to defend ethically since the teacher and learner knew each other closely.

Milgram’s selective reporting biased interpretations of his findings. His failure to publish all his experiments raises issues around researchers’ ethical obligation to completely and responsibly report their results, not just those fitting their expectations.

Unreported analysis of participants’ skepticism and its impact on their behavior:

Perry (2013) found archival evidence that many participants expressed doubt about the experiment’s setup, impacting their behavior. This supports Orne and Holland’s (1968) criticism that Milgram overlooked participants’ perceptions.

Incongruities like apparent danger, but an unconcerned experimenter likely cued participants that no real harm would occur. Trust in Yale’s ethics reinforced this. Yet Milgram did not publish his assistant’s analysis showing participant skepticism correlated with disobedience rates and varied by condition.

Obedient participants were more skeptical that the learner was harmed. This selective reporting biased interpretations. Additional unreported findings further challenge Milgram’s conclusions.

This highlights issues around thoroughly and responsibly reporting all results, not just those fitting expectations. It shows how archival evidence makes Milgram’s study a contentious classic with questionable methods and conclusions.

Ethical Issues

What are the potential ethical concerns associated with Milgram’s research on obedience?

While not a “contribution to psychology” in the traditional sense, Milgram’s obedience experiments sparked significant debate about the ethics of psychological research.

Baumrind (1964) criticized the ethics of Milgram’s research as participants were prevented from giving their informed consent to take part in the study. 

Participants assumed the experiment was benign and expected to be treated with dignity.

As a result of studies like Milgram’s, the APA and BPS now require researchers to give participants more information before they agree to take part in a study.

The participants actually believed they were shocking a real person and were unaware the learner was a confederate of Milgram’s.

However, Milgram argued that “illusion is used when necessary in order to set the stage for the revelation of certain difficult-to-get-at-truths.”

Milgram also interviewed participants afterward to find out the effect of the deception. Apparently, 83.7% said that they were “glad to be in the experiment,” and 1.3% said that they wished they had not been involved.

Protection of participants 

Participants were exposed to extremely stressful situations that may have the potential to cause psychological harm. Many of the participants were visibly distressed (Baumrind, 1964).

Signs of tension included trembling, sweating, stuttering, laughing nervously, biting lips and digging fingernails into palms of hands. Three participants had uncontrollable seizures, and many pleaded to be allowed to stop the experiment.

Milgram described a businessman reduced to a “twitching stuttering wreck” (1963, p. 377),

In his defense, Milgram argued that these effects were only short-term. Once the participants were debriefed (and could see the confederate was OK), their stress levels decreased.

“At no point,” Milgram (1964) stated, “were subjects exposed to danger and at no point did they run the risk of injurious effects resulting from participation” (p. 849).

To defend himself against criticisms about the ethics of his obedience research, Milgram cited follow-up survey data showing that 84% of participants said they were glad they had taken part in the study.

Milgram used this to claim that the study caused no serious or lasting harm, since most participants retrospectively did not regret their involvement.

Yet archival accounts show many participants endured lasting distress, even trauma, refuting Milgram’s insistence the study caused only fleeting “excitement.” By not debriefing all, Milgram misled participants about the true risks involved (Perry, 2013).

However, Milgram did debrief the participants fully after the experiment and also followed up after a period of time to ensure that they came to no harm.

Milgram debriefed all his participants straight after the experiment and disclosed the true nature of the experiment.

Participants were assured that their behavior was common, and Milgram also followed the sample up a year later and found no signs of any long-term psychological harm.

The majority of the participants (83.7%) said that they were pleased that they had participated, and 74% had learned something of personal importance.

Perry’s (2013) archival research found Milgram misrepresented debriefing – around 600 participants were not properly debriefed soon after the study, contrary to his claims. Many only learned no real shocks occurred when reading a mailed study report months later, which some may have not received.

Milgram likely misreported debriefing details to protect his credibility and enable future obedience research. This raises issues around properly informing and debriefing participants that connect to APA ethics codes developed partly in response to Milgram’s study.

Right to Withdrawal 

The BPS states that researchers should make it plain to participants that they are free to withdraw at any time (regardless of payment).

When expressing doubts, the experimenter assured them all was well. Trusting Yale scientists, many took the experimenter at his word that “no permanent tissue damage” would occur, and continued administering shocks despite reservations.

Did Milgram give participants an opportunity to withdraw? The experimenter gave four verbal prods which mostly discouraged withdrawal from the experiment:

• Please continue.
• The experiment requires that you continue.
• It is absolutely essential that you continue.
• You have no other choice, you must go on.

Milgram argued that they were justified as the study was about obedience, so orders were necessary.

Milgram pointed out that although the right to withdraw was made partially difficult, it was possible as 35% of participants had chosen to withdraw.

Replications

Direct replications have not been possible due to current ethical standards . However, several researchers have conducted partial replications and variations that aim to reproduce some aspects of Milgram’s methods ethically.

One important replication was conducted by Jerry Burger in 2009. Burger’s partial replication included several safeguards to protect participant welfare, such as screening out high-risk individuals, repeatedly reminding participants they could withdraw, and stopping at the 150-volt shock level. This was the point where Milgram’s participants first heard the learner’s protests.

As 79% of Milgram’s participants who went past 150 volts continued to the maximum 450 volts, Burger (2009) argued that 150 volts provided a reasonable estimate for obedience levels. He found 70% of participants continued to 150 volts, compared to 82.5% in Milgram’s comparable condition.

Another replication by Thomas Blass (1999) examined whether obedience rates had declined over time due to greater public awareness of the experiments. Blass correlated obedience rates from replication studies between 1963 and 1985 and found no relationship between year and obedience level. He concluded that obedience rates have not systematically changed, providing evidence against the idea of “enlightenment effects”.

Some variations have explored the role of gender. Milgram found equal rates of obedience for male and female participants. Reviews have found most replications also show no gender difference, with a couple of exceptions (Blass, 1999). For example, Kilham and Mann (1974) found lower obedience in female participants.

Partial replications have also examined situational factors. Having another person model defiance reduced obedience compared to a solo participant in one study, but did not eliminate it (Burger, 2009). The authority figure’s perceived expertise seems to be an influential factor (Blass, 1999). Replications have supported Milgram’s observation that stepwise increases in demands promote obedience.

Personality factors have been studied as well. Traits like high empathy and desire for control correlate with some minor early hesitation, but do not greatly impact eventual obedience levels (Burger, 2009). Authoritarian tendencies may contribute to obedience (Elms, 2009).

In sum, the partial replications confirm Milgram’s degree of obedience. Though ethical constraints prevent full reproductions, the key elements of his procedure seem to consistently elicit high levels of compliance across studies, samples, and eras. The replications continue to highlight the power of situational pressures to yield obedience.

Milgram (1963) Audio Clips

Below you can also hear some of the audio clips taken from the video that was made of the experiment. Just click on the clips below.

Why was the Milgram experiment so controversial?

The Milgram experiment was controversial because it revealed people’s willingness to obey authority figures even when causing harm to others, raising ethical concerns about the psychological distress inflicted upon participants and the deception involved in the study.

Would Milgram’s experiment be allowed today?

Milgram’s experiment would likely not be allowed today in its original form, as it violates modern ethical guidelines for research involving human participants, particularly regarding informed consent, deception, and protection from psychological harm.

Did anyone refuse the Milgram experiment?

Yes, in the Milgram experiment, some participants refused to continue administering shocks, demonstrating individual variation in obedience to authority figures. In the original Milgram experiment, approximately 35% of participants refused to administer the highest shock level of 450 volts, while 65% obeyed and delivered the 450-volt shock.

How can Milgram’s study be applied to real life?

Milgram’s study can be applied to real life by demonstrating the potential for ordinary individuals to obey authority figures even when it involves causing harm, emphasizing the importance of questioning authority, ethical decision-making, and fostering critical thinking in societal contexts.

Were all participants in Milgram’s experiments male?

Yes, in the original Milgram experiment conducted in 1961, all participants were male, limiting the generalizability of the findings to women and diverse populations.

Why was the Milgram experiment unethical?

The Milgram experiment was considered unethical because participants were deceived about the true nature of the study and subjected to severe emotional distress. They believed they were causing harm to another person under the instruction of authority.

Additionally, participants were not given the right to withdraw freely and were subjected to intense pressure to continue. The psychological harm and lack of informed consent violates modern ethical guidelines for research.

Baumrind, D. (1964). Some thoughts on ethics of research: After reading Milgram’s” Behavioral study of obedience.”.  American Psychologist ,  19 (6), 421.

Blass, T. (1999). The Milgram paradigm after 35 years: Some things we now know about obedience to authority 1.  Journal of Applied Social Psychology ,  29 (5), 955-978.

Brannigan, A., Nicholson, I., & Cherry, F. (2015). Introduction to the special issue: Unplugging the Milgram machine.  Theory & Psychology ,  25 (5), 551-563.

Burger, J. M. (2009). Replicating Milgram: Would people still obey today? American Psychologist, 64 , 1–11.

Elms, A. C. (2009). Obedience lite. American Psychologist, 64 (1), 32–36.

Gibson, S. (2013). Milgram’s obedience experiments: A rhetorical analysis. British Journal of Social Psychology, 52, 290–309.

Gibson, S. (2017). Developing psychology’s archival sensibilities: Revisiting Milgram’s obedience’ experiments.  Qualitative Psychology ,  4 (1), 73.

Griggs, R. A., Blyler, J., & Jackson, S. L. (2020). Using research ethics as a springboard for teaching Milgram’s obedience study as a contentious classic.  Scholarship of Teaching and Learning in Psychology ,  6 (4), 350.

Haslam, S. A., & Reicher, S. D. (2018). A truth that does not always speak its name: How Hollander and Turowetz’s findings confirm and extend the engaged followership analysis of harm-doing in the Milgram paradigm. British Journal of Social Psychology, 57, 292–300.

Haslam, S. A., Reicher, S. D., & Birney, M. E. (2016). Questioning authority: New perspectives on Milgram’s ‘obedience’ research and its implications for intergroup relations. Current Opinion in Psychology, 11 , 6–9.

Haslam, S. A., Reicher, S. D., Birney, M. E., Millard, K., & McDonald, R. (2015). ‘Happy to have been of service’: The Yale archive as a window into the engaged followership of participants in Milgram’s ‘obedience’ experiment. British Journal of Social Psychology, 54 , 55–83.

Kaplan, D. E. (1996). The Stanley Milgram papers: A case study on appraisal of and access to confidential data files. American Archivist, 59 , 288–297.

Kaposi, D. (2022). The second wave of critical engagement with Stanley Milgram’s ‘obedience to authority’experiments: What did we learn?.  Social and Personality Psychology Compass ,  16 (6), e12667.

Kilham, W., & Mann, L. (1974). Level of destructive obedience as a function of transmitter and executant roles in the Milgram obedience paradigm. Journal of Personality and Social Psychology, 29 (5), 696–702.

Milgram, S. (1963). Behavioral study of obedience . Journal of Abnormal and Social Psychology , 67, 371-378.

Milgram, S. (1964). Issues in the study of obedience: A reply to Baumrind. American Psychologist, 19 , 848–852.

Milgram, S. (1965). Some conditions of obedience and disobedience to authority . Human Relations, 18(1) , 57-76.

Milgram, S. (1974). Obedience to authority: An experimental view . Harpercollins.

Miller, A. G. (2009). Reflections on” Replicating Milgram”(Burger, 2009), American Psychologis t, 64 (1):20-27

Nicholson, I. (2011). “Torture at Yale”: Experimental subjects, laboratory torment and the “rehabilitation” of Milgram’s “obedience to authority”. Theory & Psychology, 21 , 737–761.

Nicholson, I. (2015). The normalization of torment: Producing and managing anguish in Milgram’s “obedience” laboratory. Theory & Psychology, 25 , 639–656.

Orne, M. T., & Holland, C. H. (1968). On the ecological validity of laboratory deceptions. International Journal of Psychiatry, 6 (4), 282-293.

Orne, M. T., & Holland, C. C. (1968). Some conditions of obedience and disobedience to authority. On the ecological validity of laboratory deceptions. International Journal of Psychiatry, 6 , 282–293.

Perry, G. (2013). Behind the shock machine: The untold story of the notorious Milgram psychology experiments . New York, NY: The New Press.

Reicher, S., Haslam, A., & Miller, A. (Eds.). (2014). Milgram at 50: Exploring the enduring relevance of psychology’s most famous studies [Special issue]. Journal of Social Issues, 70 (3), 393–602

Russell, N. (2014). Stanley Milgram’s obedience to authority “relationship condition”: Some methodological and theoretical implications. Social Sciences, 3, 194–214

Shanab, M. E., & Yahya, K. A. (1978). A cross-cultural study of obedience. Bulletin of the Psychonomic Society .

Smith, P. B., & Bond, M. H. (1998). Social psychology across cultures (2nd Edition) . Prentice Hall.

Further Reading

• The power of the situation: The impact of Milgram’s obedience studies on personality and social psychology
• Seeing is believing: The role of the film Obedience in shaping perceptions of Milgram’s Obedience to Authority Experiments
• Replicating Milgram: Would people still obey today?

Learning Check

Which is true regarding the Milgram obedience study?

• The aim was to see how obedient people would be in a situation where following orders would mean causing harm to another person.
• Participants were under the impression they were part of a learning and memory experiment.
• The “learners” in the study were actual participants who volunteered to be shocked as part of the experiment.
• The “learner” was an actor who was in on the experiment and never actually received any real shocks.
• Although the participant could not see the “learner”, he was able to hear him clearly through the wall
• The study was directly influenced by Milgram’s observations of obedience patterns in post-war Europe.
• The experiment was designed to understand the psychological mechanisms behind war crimes committed during World War II.
• The Milgram study was universally accepted in the psychological community, and no ethical concerns were raised about its methodology.
• When Milgram’s experiment was repeated in a rundown office building in Bridgeport, the percentage of the participants who fully complied with the commands of the experimenter remained unchanged.
• The experimenter (authority figure) delivered verbal prods to encourage the teacher to continue, such as ‘Please continue’ or ‘Please go on’.
• Over 80% of participants went on to deliver the maximum level of shock.
• Milgram sent participants questionnaires after the study to assess the effects and found that most felt no remorse or guilt, so it was ethical.
• The aftermath of the study led to stricter ethical guidelines in psychological research.
• The study emphasized the role of situational factors over personality traits in determining obedience.

Answers : Items 3, 8, 9, and 11 are the false statements.

Short Answer Questions

• Briefly explain the results of the original Milgram experiments. What did these results prove?
• List one scenario on how an authority figure can abuse obedience principles.
• List one scenario on how an individual could use these principles to defend their fellow peers.
• In a hospital, you are very likely to obey a nurse. However, if you meet her outside the hospital, for example in a shop, you are much less likely to obey. Using your knowledge of how people resist pressure to obey, explain why you are less likely to obey the nurse outside the hospital.
• Describe the shock instructions the participant (teacher) was told to follow when the victim (learner) gave an incorrect answer.
• State the lowest voltage shock that was labeled on the shock generator.
• What would likely happen if Milgram’s experiment included a condition in which the participant (teacher) had to give a high-level electric shock for the first wrong answer?

Group Activity

Gather in groups of three or four to discuss answers to the short answer questions above.

For question 2, review the different scenarios you each came up with. Then brainstorm on how these situations could be flipped.

For question 2, discuss how an authority figure could instead empower those below them in the examples your groupmates provide.

For question 3, discuss how a peer could do harm by using the obedience principles in the scenarios your groupmates provide.

Essay Topic

• What’s the most important lesson of Milgram’s Obedience Experiments? Fully explain and defend your answer.
• Milgram selectively edited his film of the obedience experiments to emphasize obedient behavior and minimize footage of disobedience. What are the ethical implications of a researcher selectively presenting findings in a way that fits their expected conclusions?

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Milgram experiment

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• Open University - OpenLearn - Psychological research, obedience and ethics: 1 Milgram’s obedience study
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• University of California - College of Natural Resources - Milgrams Experiment on Obedience to Authority

Milgram experiment , controversial series of experiments examining obedience to authority conducted by social psychologist Stanley Milgram . In the experiment, an authority figure, the conductor of the experiment, would instruct a volunteer participant, labeled the “teacher,” to administer painful, even dangerous, electric shocks to the “learner,” who was actually an actor. Although the shocks were faked, the experiments are widely considered unethical today due to the lack of proper disclosure, informed consent, and subsequent debriefing related to the deception and trauma experienced by the teachers. Some of Milgram’s conclusions have been called into question. Nevertheless, the experiments and their results have been widely cited for their insight into how average people respond to authority.

Milgram conducted his experiments as an assistant professor at Yale University in the early 1960s. In 1961 he began to recruit men from New Haven , Connecticut , for participation in a study he claimed would be focused on memory and learning . The recruits were paid $4.50 at the beginning of the study and were generally between the ages of 20 and 50 and from a variety of employment backgrounds. When they volunteered, they were told that the experiment would test the effect of punishment on learning ability. In truth, the volunteers were the subjects of an experiment on obedience to authority. In all, about 780 people, only about 40 of them women, participated in the experiments, and Milgram published his results in 1963.

Volunteers were told that they would be randomly assigned either a “teacher” or “learner” role, with each teacher administering electric shocks to a learner in another room if the learner failed to answer questions correctly. In actuality, the random draw was fixed so that all the volunteer participants were assigned to the teacher role and the actors were assigned to the learner role. The teachers were then instructed in the electroshock “punishment” they would be administering, with 30 shock levels ranging from 15 to 450 volts. The different shock levels were labeled with descriptions of their effects, such as “Slight Shock,” “Intense Shock,” and “Danger: Severe Shock,” with the final label a grim “XXX.” Each teacher was given a 45-volt shock themselves so that they would better understand the punishment they believed the learner would be receiving. Teachers were then given a series of questions for the learner to answer, with each incorrect answer generally earning the learner a progressively stronger shock. The actor portraying the learner, who was seated out of sight of the teacher, had pre-recorded responses to these shocks that ranged from grunts of pain to screaming and pleading, claims of suffering a heart condition, and eventually dead silence. The experimenter, acting as an authority figure, would encourage the teachers to continue administering shocks, telling them with scripted responses that the experiment must continue despite the reactions of the learner. The infamous result of these experiments was that a disturbingly high number of the teachers were willing to proceed to the maximum voltage level, despite the pleas of the learner and the supposed danger of proceeding.

Milgram’s interest in the subject of authority, and his dark view of the results of his experiments, were deeply informed by his Jewish identity and the context of the Holocaust , which had occurred only a few years before. He had expected that Americans, known for their individualism , would differ from Germans in their willingness to obey authority when it might lead to harming others. Milgram and his students had predicted only 1–3% of participants would administer the maximum shock level. However, in his first official study, 26 of 40 male participants (65%) were convinced to do so and nearly 80% of teachers that continued to administer shocks after 150 volts—the point at which the learner was heard to scream—continued to the maximum of 450 volts. Teachers displayed a range of negative emotional responses to the experiment even as they continued to obey, sometimes pleading with the experimenters to stop the experiment while still participating in it. One teacher believed that he had killed the learner and was moved to tears when he eventually found out that he had not.

Milgram included several variants on the original design of the experiment. In one, the teachers were allowed to select their own voltage levels. In this case, only about 2.5% of participants used the maximum shock level, indicating that they were not inclined to do so without the prompting of an authority figure. In another, there were three teachers, two of whom were not test subjects, but instead had been instructed to protest against the shocks. The existence of peers protesting the experiment made the volunteer teachers less likely to obey. Teachers were also less likely to obey in a variant where they could see the learner and were forced to interact with him.

The Milgram experiment has been highly controversial, both for the ethics of its design and for the reliability of its results and conclusions. It is commonly accepted that the ethics of the experiment would be rejected by mainstream science today, due not only to the handling of the deception involved but also to the extreme stress placed on the teachers, who often reacted emotionally to the experiment and were not debriefed . Some teachers were actually left believing they had genuinely and repeatedly shocked a learner before having the truth revealed to them later. Later researchers examining Milgram’s data also found that the experimenters conducting the tests had sometimes gone off-script in their attempts to coerce the teachers into continuing, and noted that some teachers guessed that they were the subjects of the experiment. However, attempts to validate Milgram’s findings in more ethical ways have often produced similar results.

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Stanley Milgram

In 1954 Harvard’s Department of Social Relations took the unusual step of admitting a bright young student who had not taken a single psychology course.  Fortunately Stanley Milgram was soon up to speed in social psychology, and in the course of his doctoral work at Harvard he conducted an innovative cross-cultural comparison of conformity in Norway and France under the guidance of Gordon Allport. 

Obtaining his Ph.D. in 1960, Milgram was ready to expand his work on conformity with a series of experiments on obedience to authority that he conducted as an assistant professor at Yale from 1960 to 1963. Inspired by Hannah Arendt’s report on the trial of Adolph Eichmann in Jerusalem, Milgram wondered whether her claims about “the banality of evil” – that evil acts can come from ordinary people following orders as they do their jobs – could be demonstrated in the lab. Milgram staged meticulously designed sham experiments in which subjects were ordered to administer dangerous shocks to fellow volunteers (in reality, the other volunteers were confederates and the shocks were fake). Contradicting the predictions of every expert he polled , Milgram found that more than seventy percent of the subjects administered what they thought might be fatal shocks to an innocent stranger. Collectively known as The Milgram Experiment, this groundbreaking work demonstrated the human tendency to obey commands issued by an authority figure, and more generally, the tendency for behavior to be controlled more by the demands of the situation than by idiosyncratic traits of the person.

The Milgram Experiment is one of the best-known social psychology studies of the 20th century. With this remarkable accomplishment under his belt, young Dr. Milgram returned to Harvard in 1963 to take a position as Assistant Professor of Social Psychology.

During this time at Harvard, Milgram undertook a new, equally innovative line of research, known as the Small World Experiment.  Milgram asked a sample of people to trace out a chain of personal connections to a designated stranger living thousands of miles away. His finding that most people could do this successfully with a chain of six or fewer links yielded the familiar expression “Six Degrees of Separation,” which later became the name of a play and a movie,  a source for the game “Six Degrees of Kevin Bacon,” and a major theme of Malcolm Gladwell’s 2000 bestseller,  The Tipping Point . The internet has made it easier to study social networks, and several decades after its discovery, the phenomenon has become a subject of intense new research.

Stanley Milgram left Harvard in 1967 to return to his hometown, New York City, accepting a position as head of the social psychology program at the Graduate Center of the City University of New York.  Tragically, he died of a heart attack at the age of 51. Milgram is listed as number 46 on the American Psychological Association’s list of the 100 most eminent psychologists of the 20th century.

Blass, T. (2002).  The man who shocked the world.  Psychology Today, Mar/Apr2002, 35(2), p. 68.

Eminent psychologists of the 20th century.  (July/August, 2002). Monitor on Psychology, 33(7), p.29.

Milgram, S. (1977).  The individual in a social world.  Reading, MA:  Addison-Wesley Publishing Co.

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Author Interviews

Taking a closer look at milgram's shocking obedience study.

Behind the Shock Machine

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In the early 1960s, Stanley Milgram, a social psychologist at Yale, conducted a series of experiments that became famous. Unsuspecting Americans were recruited for what purportedly was an experiment in learning. A man who pretended to be a recruit himself was wired up to a phony machine that supposedly administered shocks. He was the "learner." In some versions of the experiment he was in an adjoining room.

The unsuspecting subject of the experiment, the "teacher," read lists of words that tested the learner's memory. Each time the learner got one wrong, which he intentionally did, the teacher was instructed by a man in a white lab coat to deliver a shock. With each wrong answer the voltage went up. From the other room came recorded and convincing protests from the learner — even though no shock was actually being administered.

The results of Milgram's experiment made news and contributed a dismaying piece of wisdom to the public at large: It was reported that almost two-thirds of the subjects were capable of delivering painful, possibly lethal shocks, if told to do so. We are as obedient as Nazi functionaries.

Or are we? Gina Perry, a psychologist from Australia, has written Behind the Shock Machine: The Untold Story of the Notorious Milgram Psychology Experiments . She has been retracing Milgram's steps, interviewing his subjects decades later.

"The thought of quitting never ... occurred to me," study participant Bill Menold told Perry in an Australian radio documentary . "Just to say: 'You know what? I'm walking out of here' — which I could have done. It was like being in a situation that you never thought you would be in, not really being able to think clearly."

In his experiments, Milgram was "looking to investigate what it was that had contributed to the brainwashing of American prisoners of war by the Chinese [in the Korean war]," Perry tells NPR's Robert Siegel.

Interview Highlights

On turning from an admirer of Milgram to a critic

"That was an unexpected outcome for me, really. I regarded Stanley Milgram as a misunderstood genius who'd been penalized in some ways for revealing something troubling and profound about human nature. By the end of my research I actually had quite a very different view of the man and the research."

Watch A Video Of One Of The Milgram Obedience Experiments

On the many variations of the experiment

"Over 700 people took part in the experiments. When the news of the experiment was first reported, and the shocking statistic that 65 percent of people went to maximum voltage on the shock machine was reported, very few people, I think, realized then and even realize today that that statistic applied to 26 of 40 people. Of those other 700-odd people, obedience rates varied enormously. In fact, there were variations of the experiment where no one obeyed."

On how Milgram's study coincided with the trial of Nazi officer Adolf Eichmann — and how the experiment reinforced what Hannah Arendt described as "the banality of evil"

"The Eichmann trial was a televised trial and it did reintroduce the whole idea of the Holocaust to a new American public. And Milgram very much, I think, believed that Hannah Arendt's view of Eichmann as a cog in a bureaucratic machine was something that was just as applicable to Americans in New Haven as it was to people in Germany."

On the ethics of working with human subjects

"Certainly for people in academia and scholars the ethical issues involved in Milgram's experiment have always been a hot issue. They were from the very beginning. And Milgram's experiment really ignited a debate particularly in social sciences about what was acceptable to put human subjects through."

Gina Perry is an Australian psychologist. She has previously written for The Age and The Australian. Chris Beck/Courtesy of The New Press hide caption

Gina Perry is an Australian psychologist. She has previously written for The Age and The Australian.

On conversations with the subjects, decades after the experiment

"[Bill Menold] doesn't sound resentful. I'd say he sounds thoughtful and he has reflected a lot on the experiment and the impact that it's had on him and what it meant at the time. I did interview someone else who had been disobedient in the experiment but still very much resented 50 years later that he'd never been de-hoaxed at the time and he found that really unacceptable."

On the problem that one of social psychology's most famous findings cannot be replicated

"I think it leaves social psychology in a difficult situation. ... it is such an iconic experiment. And I think it really leads to the question of why it is that we continue to refer to and believe in Milgram's results. I think the reason that Milgram's experiment is still so famous today is because in a way it's like a powerful parable. It's so widely known and so often quoted that it's taken on a life of its own. ... This experiment and this story about ourselves plays some role for us 50 years later."

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Understand the infamous study and its conclusions about human nature

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A brief Milgram experiment summary is as follows: In the 1960s, psychologist Stanley Milgram conducted a series of studies on the concepts of obedience and authority. His experiments involved instructing study participants to deliver increasingly high-voltage shocks to an actor in another room, who would scream and eventually go silent as the shocks became stronger. The shocks weren't real, but study participants were made to believe that they were.

Today, the Milgram experiment is widely criticized on both ethical and scientific grounds. However, Milgram's conclusions about humanity's willingness to obey authority figures remain influential and well-known.

Key Takeaways: The Milgram Experiment

• The goal of the Milgram experiment was to test the extent of humans' willingness to obey orders from an authority figure.
• Participants were told by an experimenter to administer increasingly powerful electric shocks to another individual. Unbeknownst to the participants, shocks were fake and the individual being shocked was an actor.
• The majority of participants obeyed, even when the individual being shocked screamed in pain.
• The experiment has been widely criticized on ethical and scientific grounds.

Detailed Milgram’s Experiment Summary

In the most well-known version of the Milgram experiment, the 40 male participants were told that the experiment focused on the relationship between punishment, learning, and memory. The experimenter then introduced each participant to a second individual, explaining that this second individual was participating in the study as well. Participants were told that they would be randomly assigned to roles of "teacher" and "learner." However, the "second individual" was an actor hired by the research team, and the study was set up so that the true participant would always be assigned to the "teacher" role.

During the Milgram experiment, the learner was located in a separate room from the teacher (the real participant), but the teacher could hear the learner through the wall. The experimenter told the teacher that the learner would memorize word pairs and instructed the teacher to ask the learner questions. If the learner responded incorrectly to a question, the teacher would be asked to administer an electric shock. The shocks started at a relatively mild level (15 volts) but increased in 15-volt increments up to 450 volts. (In actuality, the shocks were fake, but the participant was led to believe they were real.)

Participants were instructed to give a higher shock to the learner with each wrong answer. When the 150-volt shock was administered, the learner would cry out in pain and ask to leave the study. He would then continue crying out with each shock until the 330-volt level, at which point he would stop responding.

During this process, whenever participants expressed hesitation about continuing with the study, the experimenter would urge them to go on with increasingly firm instructions, culminating in the statement, "You have no other choice, you must go on." The study ended when participants refused to obey the experimenter’s demand, or when they gave the learner the highest level of shock on the machine (450 volts).

Milgram found that participants obeyed the experimenter at an unexpectedly high rate: 65% of the participants gave the learner the 450-volt shock.

Critiques of the Milgram Experiment

The Milgram experiment has been widely criticized on ethical grounds. Milgram’s participants were led to believe that they acted in a way that harmed someone else, an experience that could have had long-term consequences. Moreover, an investigation by writer Gina Perry uncovered that some participants appear to not have been fully debriefed after the study —they were told months later, or not at all, that the shocks were fake and the learner wasn’t harmed. Milgram’s studies could not be perfectly recreated today, because researchers today are required to pay much more attention to the safety and well-being of human research subjects.

Researchers have also questioned the scientific validity of Milgram’s results. In her examination of the study, Perry found that Milgram’s experimenter may have gone off script and told participants to obey many more times than the script specified. Additionally, some research suggests that participants may have figured out that the learner was not harmed: in interviews conducted after the Milgram experiment, some participants reported that they didn’t think the learner was in any real danger. This mindset is likely to have affected their behavior in the study.

Variations on the Milgram Experiment

Milgram and other researchers conducted numerous versions of the experiment over time. The participants' levels of compliance with the experimenter’s demands varied greatly from one study to the next. For example, when participants were in closer proximity to the learner (e.g. in the same room), they were less likely to give the learner the highest level of shock.

Another version of the Milgram experiment brought three "teachers" into the experiment room at once. One was a real participant, and the other two were actors hired by the research team. During the experiment, the two non-participant teachers would quit as the level of shocks began to increase. Milgram found that these conditions made the real participant far more likely to "disobey" the experimenter, too: only 10% of participants gave the 450-volt shock to the learner.

In yet another version of the Milgram experiment, two experimenters were present, and during the experiment, they would begin arguing with one another about whether it was right to continue the study. In this version, none of the participants gave the learner the 450-volt shock.

Replicating the Milgram Experiment

Researchers have sought to replicate Milgram's original study with additional safeguards in place to protect participants. In 2009, Jerry Burger replicated Milgram’s famous experiment at Santa Clara University with new safeguards in place: the highest shock level was 150 volts, and participants were told that the shocks were fake immediately after the experiment ended. Additionally, participants were screened by a clinical psychologist before the experiment began, and those found to be at risk of a negative reaction to the study were deemed ineligible to participate.

Burger found that participants obeyed at similar levels as Milgram’s participants: 82.5% of Milgram’s participants gave the learner the 150-volt shock, and 70% of Burger’s participants did the same.

The Legacy of the Milgram Experiment

Milgram’s interpretation of his research was that everyday people are capable of carrying out unthinkable actions in certain circumstances. His research has been used to explain atrocities such as the Holocaust and the Rwandan genocide, though these applications are by no means widely accepted or agreed upon.

Importantly, not all participants obeyed the experimenter’s demands , and Milgram’s studies shed light on the factors that enable people to stand up to authority. In fact, as sociologist Matthew Hollander writes, we may be able to learn from the participants who disobeyed, as their strategies may enable us to respond more effectively to an unethical situation. The Milgram experiment suggested that human beings are susceptible to obeying authority, but it also demonstrated that obedience is not inevitable.

• Baker, Peter C. “Electric Schlock: Did Stanley Milgram's Famous Obedience Experiments Prove Anything?” Pacific Standard (2013, Sep. 10). https://psmag.com/social-justice/electric-schlock-65377
• Burger, Jerry M. "Replicating Milgram: Would People Still Obey Today?."  American Psychologist 64.1 (2009): 1-11. http://psycnet.apa.org/buy/2008-19206-001
• Gilovich, Thomas, Dacher Keltner, and Richard E. Nisbett. Social Psychology . 1st edition, W.W. Norton & Company, 2006.
• Hollander, Matthew. “How to Be a Hero: Insight From the Milgram Experiment.” HuffPost Contributor Network (2015, Apr. 29). https://www.huffingtonpost.com/entry/how-to-be-a-hero-insight-_b_6566882
• Jarrett, Christian. “New Analysis Suggests Most Milgram Participants Realised the ‘Obedience Experiments’ Were Not Really Dangerous.” The British Psychological Society: Research Digest (2017, Dec. 12). https://digest.bps.org.uk/2017/12/12/interviews-with-milgram-participants-provide-little-support-for-the-contemporary-theory-of-engaged-followership/
• Perry, Gina. “The Shocking Truth of the Notorious Milgram Obedience Experiments.” Discover Magazine Blogs (2013, Oct. 2). http://blogs.discovermagazine.com/crux/2013/10/02/the-shocking-truth-of-the-notorious-milgram-obedience-experiments/
• Romm, Cari. “Rethinking One of Psychology's Most Infamous Experiments.” The Atlantic (2015, Jan. 28) . https://www.theatlantic.com/health/archive/2015/01/rethinking-one-of-psychologys-most-infamous-experiments/384913/
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Stanley Milgram’s Experiment

Stanley Milgram was one of the most influential social psychologists of the twentieth century. Born in 1933 in New York, he obtained a BA from Queen’s College, and went on to receive a PhD in psychology from Harvard. Subsequently, Milgram held faculty positions in psychology at Yale University and the City University of New York until his untimely death in 1984. Although Milgram never held a formal appointment in sociology, his work was centrally focused on the social psychological aspects of social structure.

In a historic coincidence, in 1961, just as Milgram was about to begin work on his famous obedience experiments, the world witnessed the trial of Adolf Otto Eichmann, a high ranking Nazi official who was in charge of organizing the transport of millions of Jews to the death camps. To many, Eichmann appeared not at all to be the fervent anti Semite that many had suspected him to be; rather, his main defense was that he was only ‘‘following orders’’ as an administrator. To the political theorist Hannah Arendt, Eichmann’s case illustrated the ‘‘banality of evil,’’ in which personal malice appeared to matter less than the desire of individuals to fulfill their roles in the larger context of a bureaucracy. Milgram’s research is arguably the most striking example to illustrate this dynamic.

Milgram planned and conducted his obedience experiments between 1960 and 1963 at Yale University. In order to be able to study obedience to authority, he put unsuspecting research participants in a novel situation, which he staged in the laboratory. With the help of actors and props, Milgram set up an experimental ruse that was so real that hardly any of his research participants suspected that, in reality, nothing was what it pretended to be.

For this initial study, using newspaper ads promising $4.50 for participation in a psychological study, Milgram recruited men aged 20 to 50, ranging from elementary school drop outs to PhDs. Each research participant arrived in the lab along with another man, white and roughly 30 years of age, whom they thought to be another research participant. In reality, this person was a confederate, that is, an actor in cahoots with the experimenter. The experimenter explained that both men were about to take part in a study that explored the effect of punishment on memory. One man would assume the role of a ‘‘teacher’’ who would read a series of word pairings (e.g., nice day, blue box), which the other (‘‘the learner’’) was supposed to memorize. Subsequently, the teacher would read the first word of the pair with the learner having to select the correct second word from a list. Every mistake by the learner would be punished with an electric shock. It was further made clear that, although the shocks would be painful, they would not do any permanent harm.

Following this explanation, the experimenter assigned both men to the roles. Because the procedure was rigged, the unsuspecting research participant always was assigned to the role of teacher. As first order of business, the learner was seated in an armchair in an adjoining room such that he would be separated by a wall from the teacher, but would other wise be able to hear him from the main room. Electrodes were affixed to the learner’s arms, who was subsequently strapped to the chair apparently to make sure that improper movements would not endanger the success of the experiment.

In the main room, the teacher was told that he would have to apply electric shocks every time the learner made a mistake. For this purpose, the learner was seated in front of an electric generator with various dials. The experimenter instructed the teacher to steadily increase the voltage of the shock each time the learner made a new mistake. The shock generator showed a row of levers ranging from 15 volts on the left to 450 volts on the right, with each lever in between delivering a shock 15 volts higher than its neighbor on the left. Milgram labeled the voltage level, left to right, from ‘‘Slight Shock’’ to ‘‘Danger: Severe Shock,’’ with the last two switches being marked ‘‘XXX.’’ The teacher was told that he simply should work his way from the left to the right without using any lever twice. To give the teacher an idea of the electric current he would deliver to the learner, he received a sample shock of 45 volts, which most research participants found surprisingly painful. However, despite its appearance, in reality the generator never emitted any electric shocks. It was merely a device that allowed Milgram to examine how far the teacher would go in harming another person based on the experimenter’s say so.

As learning trials started, the teacher applied electric shocks to the learner. The learner’s responses were scripted such that he apparently made many mistakes, requiring the teacher to increase shock levels by 15 volts with every new mistake. As the strength of electric shocks increased, occasional grunts and moans of pain were heard from the learner. At 120 volts the learner started complaining about the pain. At 150 volts, the learner demanded to be released on account of a heart condition, and the protest continued until the shocks reached 300 volts and the learner started pounding on the wall. At 315 volts the learner stopped responding altogether.

As the complaints by the learner started, the teacher would often turn to the experimenter, who was seated at a nearby desk, wondering whether and how to proceed. The experimenter, instead of terminating the experiment, replied with a scripted succession of prods:

• Prod 1: ‘‘Please continue.’’
• Prod 2: ‘‘The experiment requires that you continue.’’
• Prod 3: ‘‘It is absolutely necessary to continue.’’
• Prod 4: ‘‘You have no other choice: you must go on.’’

These prods were successful in coaxing many teachers into continuing to apply electric shocks even when the learner no longer responded to the word memory questions. Indeed, in the first of Milgram’s experiments, a stunning 65 percent of all participants continued all the way to 450 volts, and not a single participant refused to continue the shocks before they reached the 300 volt level! The high levels of compliance illustrate the powerful effect of the social structure that participants had entered. By accepting the role of teacher in the experiment in exchange for the payment of a nominal fee, participants had agreed to accept the authority of the experimenter and carry out his instructions. In other words, just as Milgram suspected, the social forces of hierarchy and obedience could push normal and well adjusted individuals into harming others.

The overall level of obedience, however, does not reveal the tremendous amount of stress that all teachers experienced. Because the situation was extremely realistic, teachers were agonizing over whether or not to continue the electric shocks. Should they care for the well being of the obviously imperiled learners and even put their life in danger? Or should they abide by a legitimate authority figure, who presented his instructions crisply and confidently? Participants typically sought to resolve this conflict by seeking assurances that the experimenter, and not themselves, would accept full responsibility for their actions. Once they felt assured, they typically continued to apply shocks that would have likely electrocuted the learner.

Milgram expanded his initial research into a series of 19 experiments in which he carefully examined the conditions under which obedience would occur. For instance, the teacher’s proximity to the learner was an important factor in lowering obedience, that is, the proportion of people willing to deliver the full 450 volts. When the teacher was in the same room with the learner, obedience dropped to 40 percent, and when the teacher was required to touch the learner and apply physical force to deliver the electric shock, obedience dropped to 30 percent.

Milgram further suspected that the social status of the experimenter, presumably a serious Yale University researcher in a white lab coat, would have important implications for obedience. Indeed, when there was no obvious connection with Yale, and the above experiment was repeated in a run down office building in Bridgeport, Connecticut, obedience dropped to 48 percent. Indeed, when not the white coated experimenter but another confederate encouraged the teacher to continue the shocks, all participants terminated the experiment as soon as the confederate complained. Milgram concluded that ‘‘a substantial proportion of people do what they are told to do, irrespective of the content of the act and with out limitations of conscience, so long as they perceive that the command comes from a legitimate authority’’ (1965). However, additional studies highlighted that obedience is in part contingent on surveillance. When the experimenter transmitted his orders not in person but via telephone, obedience levels dropped to 20 percent, with many participants only pretending to apply higher and higher electric shocks.

Since its initial publication in 1963, Mil gram’s research has drawn a lot of criticism, mainly on ethical grounds. First, it was alleged that it was unethical to deceive participants to the extent that occurred in these studies. It is important to note that all participants were fully debriefed on the deception, and most did not seem to mind and were relieved to find out that they had not shocked the learner. The second ethical criticism is, however, much more serious. As alluded to earlier, Milgram exposed his participants to tremendous levels of stress. Milgram, anticipating this criticism, inter viewed participants after the experiment and followed up several weeks later. The over whelming majority of his participants commented that they enjoyed being in the experiment, and only a small minority experienced regret. Even though personally Milgram rejected allegations of having mistreated his participants, his own work suggests that he may have gone too far: ‘‘Subjects were observed to sweat, tremble, bite their lips, groan, and dig their fingernails into their flesh . . . A mature and initially poised businessman entered the laboratory smiling and confident. Within 20 minutes, he was reduced to a twitching, stuttering wreck who was rapidly approaching a point of nervous collapse’’ (1963: 375). Today, Milgram’s obedience studies are generally considered unethical and would not pass muster with regard to contemporary regulations protecting the well being of research participants. Ironically, partly because Milgram’s studies illustrated the power of hierarchical social relationships, contemporary researchers are at great pains to avoid coercion and allow participants to terminate their participation in any research study at any time without penalty.

Another type of criticism of the obedience studies has questioned their generality and charged that their usefulness in explaining real world events is limited. Indeed, Milgram conducted his research when trust in authorities was higher than it is nowadays. However, Milgram’s studies have withstood this criticism. Reviews of research conducted using Milgram’s paradigm have generally found obedience levels to be at roughly 60 percent (see, e.g., Blass 2000). In one of his studies Milgram further documented that there was no apparent difference in the responses of women and men. More recent research using more ethically acceptable methods further testifies to the power of obedience in shaping human action (Blass 2000).

Milgram offers an important approach to explaining the Holocaust by emphasizing the bureaucratic nature of evil, which relegated individuals to executioners of orders issued by a legitimate authority. Sociologists have extended this analysis and provided compelling accounts of obedience as root causes of many horrific crimes, ranging from the My Lai massacre to Watergate (Hamilton & Kelman 1989). How ever, it is arguably somewhat unclear to what extent Milgram’s findings can help explain the occurrence of the Holocaust itself. Whereas obedience kept the machinery of death running with frightening efficiency, historians often caution against ignoring the malice and sadism that many of Hitler’s executioners brought to the task (see Blass 2004).

Milgram’s dramatic experiments have left a lasting impression beyond the social sciences. They are the topic of various movies, including the 1975 TV film The Tenth Level starring William Shatner. Further, the 37 percent of participants who did not obey were memorialized in a 1986 song by the rock musician Peter Gabriel titled ‘‘We Do What We’re Told (Milgram’s 37).’’

References:

• Blass, T. (Ed.) (2000) Obedience to Authority: Current Perspectives on the Milgram Paradigm. Erlbaum, Mahwah, NJ.
• Blass, T. (2004) The Man Who Shocked the World: The Life and Legacy of Stanley Milgram. Basic Books, New York.
• Hamilton, V. L. & Kelman, H. (1989) Crimes of Obedience: Toward a Social Psychology of Authority and Responsibility. Yale University Press, New Haven.
• Milgram, S. (1963) Behavioral Study of Obedience. Journal of Abnormal and Social Psychology 69: 371-8.
• Milgram, S. (1965) Some Conditions of Obedience and Disobedience to Authority. Human Relations 18: 57-76.
• Milgram, S. (1974) Obedience to Authority: An Experimental View. Harper & Row, New York.

Rethinking One of Psychology's Most Infamous Experiments

In the 1960s, Stanley Milgram's electric-shock studies showed that people will obey even the most abhorrent of orders. But recently, researchers have begun to question his conclusions — and offer some of their own.

In 1961, Yale University psychology professor Stanley Milgram placed an advertisement in the New Haven Register . “We will pay you $4 for one hour of your time,” it read, asking for “500 New Haven men to help us complete a scientific study of memory and learning.”

Only part of that was true. Over the next two years, hundreds of people showed up at Milgram’s lab for a learning and memory study that quickly turned into something else entirely. Under the watch of the experimenter, the volunteer—dubbed “the teacher”—would read out strings of words to his partner, “the learner,” who was hooked up to an electric-shock machine in the other room. Each time the learner made a mistake in repeating the words, the teacher was to deliver a shock of increasing intensity, starting at 15 volts (labeled “slight shock” on the machine) and going all the way up to 450 volts (“Danger: severe shock”). Some people, horrified at what they were being asked to do, stopped the experiment early, defying their supervisor’s urging to go on; others continued up to 450 volts, even as the learner pled for mercy, yelled a warning about his heart condition—and then fell alarmingly silent. In the most well-known variation of the experiment, a full 65 percent of people went all the way.

Until they emerged from the lab, the participants didn’t know that the shocks weren’t real, that the cries of pain were pre-recorded, and that the learner—railroad auditor Jim McDonough —was in on the whole thing, sitting alive and unharmed in the next room. They were also unaware that they had just been used to prove the claim that would soon make Milgram famous: that ordinary people, under the direction of an authority figure, would obey just about any order they were given, even to torture. It’s a phenomenon that’s been used to explain atrocities from the Holocaust to the Vietnam War’s My Lai massacre to the abuse of prisoners at Abu Ghraib. “To a remarkable degree,” Peter Baker wrote in Pacific Standard in 2013, “Milgram’s early research has come to serve as a kind of all-purpose lightning rod for discussions about the human heart of darkness.”

In some ways, though, Milgram’s study is also—as promised—a study of memory, if not the one he pretended it was.

More than five decades after it was first published in the Journal of Abnormal and Social Psychology in 1963, it’s earned a place as one of the most famous experiments of the 20th century. Milgram’s research has spawned countless spinoff studies among psychologists, sociologists, and historians, even as it’s leapt from academia into the realm of pop culture. It’s inspired songs by Peter Gabriel (lyrics: “We do what we’re told/We do what we’re told/Told to do”) and Dar Williams (“When I knew it was wrong, I played it just like a game/I pressed the buzzer”); a number of books whose titles make puns out of the word “shocking”; a controversial French documentary disguised as a game show ; episodes of Law and Order and Bones ; a made-for-TV movie with William Shatner; a jewelry collection (bizarrely) from the company Enfants Perdus; and most recently, the biopic The Experimenter , starring Peter Sarsgaard as the title character—and this list is by no means exhaustive.

But as with human memory, the study—even published, archived, enshrined in psychology textbooks—is malleable. And in the past few years, a new wave of researchers have dedicated themselves to reshaping it, arguing that Milgram’s lessons on human obedience are, in fact, misremembered—that his work doesn’t prove what he claimed it does.

The problem is, no one can really agree on what it proves instead.

To mark the 50th anniversary of the experiments’ publication (or, technically, the 51st), the Journal of Social Issues released a themed edition in September 2014 dedicated to all things Milgram. “There is a compelling and timely case for reexamining Milgram’s legacy,” the editors wrote in the introduction, noting that they were in good company: In 1964, the year after the experiments were published, fewer than 10 published studies referenced Milgram’s work; in 2012, that number was more than 60.

It’s a trend that surely would have pleased Milgram, who crafted his work with an audience in mind from the beginning. “Milgram was a fantastic dramaturg. His studies are fantastic little pieces of theater. They’re beautifully scripted,” said Stephen Reicher, a professor of psychology at the University of St. Andrews and a co-editor of the Journal of Social Issues ’ special edition. Capitalizing on the fame his 1963 publication earned him, Milgram went on to publish a book on his experiments in 1974 and a documentary, Obedience , with footage from the original experiments.

But for a man determined to leave a lasting legacy, Milgram also made it remarkably easy for people to pick it apart. The Yale University archives contain boxes upon boxes of papers, videos, and audio recordings, an entire career carefully documented for posterity. Though Milgram’s widow Alexandra donated the materials after his death in 1984, they remained largely untouched for years, until Yale’s library staff began to digitize all the materials in the early 2000s. Able to easily access troves of material for the first time, the researchers came flocking.

“There’s a lot of dirty laundry in those archives,” said Arthur Miller, a professor emeritus of psychology at Miami University and another co-editor of the Journal of Social Issues . “Critics of Milgram seem to want to—and do—find material in these archives that makes Milgram look bad or unethical or, in some cases, a liar.”

One of the most vocal of those critics is Australian author and psychologist Gina Perry, who documented her experience tracking down Milgram’s research participants in her 2013 book Behind the Shock Machine: The Untold Story of the Notorious Milgram Psychology Experiments . Her project began as an effort to write about the experiments from the perspective of the participants—but when she went back through the archives to confirm some of their stories, she said, she found some glaring issues with Milgram’s data. Among her accusations: that the supervisors went off script in their prods to the teachers, that some of the volunteers were aware that the setup was a hoax, and that others weren’t debriefed on the whole thing until months later. “My main issue is that methodologically, there have been so many problems with Milgram’s research that we have to start re-examining the textbook descriptions of the research,” she said.

But many psychologists argue that even with methodological holes and moral lapses, the basic finding of Milgram’s work, the rate of obedience, still holds up. Because of the ethical challenge of reproducing the study, the idea survived for decades on a mix of good faith and partial replications—one study had participants administer their shocks in a virtual-reality system, for example—until 2007, when ABC collaborated with Santa Clara University psychologist Jerry Burger to replicate Milgram’s experiment for an episode of the TV show Basic Instincts titled “ The Science of Evil ,” pegged to Abu Ghraib.

Burger’s way around an ethical breach: In the most well-known experiment, he found, 80 percent of the participants who reached a 150-volt shock continued all the way to the end. “So what I said we could do is take people up to the 150-volt point, see how they reacted, and end the study right there,” he said. The rest of the setup was nearly identical to Milgram’s lab of the early 1960s (with one notable exception: “Milgram had a gray lab coat and I couldn’t find a gray, so I got a light blue.”)

At the end of the experiment, Burger was left with an obedience rate around the same as the one Milgram had recorded—proving, he said, not only that Milgram’s numbers had been accurate, but that his work was as relevant as ever. “[The results] didn’t surprise me,” he said, “but for years I had heard from my students and from other people, ‘Well, that was back in the 60s, and somehow how we’re more aware of the problems of blind obedience, and people have changed.’”

In recent years, though, much of the attention has focused less on supporting or discrediting Milgram’s statistics, and more on rethinking his conclusions. With a paper published earlier this month in the British Journal of Social Psychology , Matthew Hollander, a sociology Ph.D. candidate at the University of Wisconsin, is among the most recent to question Milgram’s notion of obedience. After analyzing the conversation patterns from audio recordings of 117 study participants, Hollander found that Milgram’s original classification of his subjects—either obedient or disobedient—failed to capture the true dynamics of the situation. Rather, he argued, people in both categories tried several different forms of protest—those who successfully ended the experiment early were simply better at resisting than the ones that continued shocking.

“Research subjects may say things like ‘I can’t do this anymore’ or ‘I’m not going to do this anymore,’” he said, even those who went all the way to 450 volts. “I understand those practices to be a way of trying to stop the experiment in a relatively aggressive, direct, and explicit way.”

It’s a far cry from Milgram’s idea that the capacity for evil lies dormant in everyone, ready to be awakened with the right set of circumstances. The ability to disobey toxic orders, Hollander said, is a skill that can be taught like any other—all a person needs to learn is what to say and how to say it.

In some ways, the conclusions Milgram drew were as much a product of their time as they were a product of his research. At the time he began his studies, the trial of Adolf Eichmann, one of the major architects of the Holocaust, was already in full swing. In 1963, the same year that Milgram published his studies, writer Hannah Arendt coined the phrase “the banality of evil” to describe Eichmann in her book on the trial, Eichmann in Jerusalem .

Milgram, who was born in New York City in 1933 to Jewish immigrant parents, came to view his studies as a validation of Arendt’s idea—but the Holocaust had been at the forefront of his mind for years before either of them published their work. “I should have been born into the German-speaking Jewish community of Prague in 1922 and died in a gas chamber some 20 years later,” he wrote in a letter to a friend in 1958. “How I came to be born in the Bronx Hospital, I’ll never quite understand.”

And in the introduction of his 1963 paper, he invoked the Nazis within the first few paragraphs: “Obedience, as a determinant of behavior, is of particular relevance to our time,” he wrote. “Gas chambers were built, death camps were guarded; daily quotas of corpses were produced … These inhumane policies may have originated in the mind of a single person, but they could only be carried out on a massive scale if a very large number of persons obeyed orders.”

Though the term didn’t exist at the time, Milgram was a proponent of what today’s social psychologists call situationism: the idea that people’s behavior is determined largely by what’s happening around them. “They’re not psychopaths, and they’re not hostile, and they’re not aggressive or deranged. They’re just people, like you and me,” Miller said. “If you put us in certain situations, we’re more likely to be racist or sexist, or we may lie, or we may cheat. There are studies that show this, thousands and thousands of studies that document the many unsavory aspects of most people.”

But continued to its logical extreme, situationism “has an exonerating effect,” he said. “In the minds of a lot of people, it tends to excuse the bad behavior … it’s not the person’s fault for doing the bad thing, it’s the situation they were put in.” Milgram’s studies were famous because their implications were also devastating: If the Nazis were just following orders, then he had proved that anyone at all could be a Nazi. If the guards at Abu Ghraib were just following orders, then anyone was capable of torture.

The latter, Reicher said, is part of why interest in Milgram’s work has seen a resurgence in recent years. “If you look at acts of human atrocity, they’ve hardly diminished over time,” he said, and news of the abuse at Abu Ghraib was surfacing around the same time that Yale’s archival material was digitized, a perfect storm of encouragement for scholars to turn their attention once again to the question of what causes evil.

He and his colleague Alex Haslam, the third co-editor of The Journal of Social Issues ’ Milgram edition and a professor of psychology at the University of Queensland, have come up with a different answer. “The notion that we somehow automatically obey authority, that we are somehow programmed, doesn’t account for the variability [in rates of obedience] across conditions,” he said; in some iterations of Milgram’s study, the rate of compliance was close to 100 percent, while in others it was closer to zero. “We need an account that can explain the variability—when we obey, when we don’t.”

“We argue that the answer to that question is a matter of identification,” he continued. “Do they identify more with the cause of science, and listen to the experimenter as a legitimate representative of science, or do they identify more with the learner as an ordinary person? … You’re torn between these different voices. Who do you listen to?”

The question, he conceded, applies as much to the study of Milgram today as it does to what went on in his lab. “Trying to get a consensus among academics is like herding cats,” Reicher said, but “if there is a consensus, it’s that we need a new explanation. I think nearly everybody accepts the fact that Milgram discovered a remarkable phenomenon, but he didn’t provide a very compelling explanation of that phenomenon.”

What he provided instead was a difficult and deeply uncomfortable set of questions—and his research, flawed as it is, endures not because it clarifies the causes of human atrocities, but because it confuses more than it answers.

Or, as Miller put it: “The whole thing exists in terms of its controversy, how it’s excited some and infuriated others. People have tried to knock it down, and it always comes up standing.”

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Article contents

Milgram’s experiments on obedience to authority.

• Stephen Gibson Stephen Gibson Heriot-Watt University, School of Social Sciences
• https://doi.org/10.1093/acrefore/9780190236557.013.511
• Published online: 30 June 2020

Stanley Milgram’s experiments on obedience to authority are among the most influential and controversial social scientific studies ever conducted. They remain staples of introductory psychology courses and textbooks, yet their influence reaches far beyond psychology, with myriad other disciplines finding lessons in them. Indeed, the experiments have long since broken free of the confines of academia, occupying a place in popular culture that is unrivaled among psychological experiments. The present article begins with an overview of Milgram’s account of his experimental procedure and findings, before focussing on recent scholarship that has used materials from Milgram’s archive to challenge many of the long-held assumptions about the experiments. Three areas in which our understanding of the obedience experiments has undergone a radical shift in recent years are the subject of particular focus. First, work that has identified new ethical problems with Milgram’s studies is summarized. Second, hitherto unknown methodological variations in Milgram’s experimental procedures are considered. Third, the interactions that took place in the experimental sessions themselves are explored. This work has contributed to a shift in how we see the obedience experiments. Rather than viewing the experiments as demonstrations of people’s propensity to follow orders, it is now clear that people did not follow orders in Milgram’s experiments. The experimenter did a lot more than simply issue orders, and when he did, participants found it relatively straightforward to defy them. These arguments are discussed in relation to the definition of obedience that has typically been adopted in psychology, the need for further historical work on Milgram’s experiments, and the possibilities afforded by the development of a broader project of secondary qualitative analysis of laboratory interaction in psychology experiments.

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More shocking results: New research replicates Milgram's findings

March 2009, Vol 40, No. 3

Print version: page 13

Nearly 50 years after the controversial Milgram experiments, social psychologist Jerry M. Burger, PhD, has found that people are still just as willing to administer what they believe are painful electric shocks to others when urged on by an authority figure.

Burger, a professor at Santa Clara University, replicated one of the famous obedience experiments of the late Stanley Milgram, PhD, and found that compliance rates in the replication were only slightly lower than those found by Milgram. And, like Milgram, he found no difference in the rates of obedience between men and women.

"People learning about Milgram's work often wonder whether results would be any different today," Burger says. "Many point to the lessons of the Holocaust and argue that there is greater societal awareness of the dangers of blind obedience. But what I found is the same situational factors that affected obedience in Milgram's experiments still operate today."

Stanley Milgram, PhD, was an assistant professor at Yale in 1961 when he conducted the first in a series of experiments in which subjects—thinking they were testing the effect of punishment on learning—administered what they believed were increasingly powerful electric shocks to another person in a separate room. An authority figure conducting the experiment prodded the first person, who was assigned the role of "teacher," to continue shocking the other person, who was playing the role of "learner." In reality, both the authority figure and the learner were in on the real intent of the experiment, and the imposing-looking shock generator machine was a fake.

Milgram found that, after hearing the learner's first cries of pain at 150 volts, 82.5 percent of participants continued administering shocks; of those, 79 percent continued to the shock generator's end, at 450 volts. In Burger's replication, 70 percent of the participants had to be stopped as they continued past 150 volts—a difference that was not statistically significant.

Burger implemented a number of safeguards that enabled him to win approval for the work from his university's institutional review board, including making 150 volts the top range in his study. Burger also screened out anyone who had taken more than two psychology courses in college or who indicated familiarity with Milgram's research. A clinical psychologist also interviewed potential subjects and eliminated anyone who might have a negative reaction to the study procedure.

—K.I. Mills

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• Published: 18 February 2016

Modern Milgram experiment sheds light on power of authority

• Alison Abbott  

Nature volume  530 ,  pages 394–395 ( 2016 ) Cite this article

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• Neuroscience

People obeying commands feel less responsibility for their actions.

More than 50 years after a controversial psychologist shocked the world with studies that revealed people’s willingness to harm others on order, a team of cognitive scientists has carried out an updated version of the iconic ‘Milgram experiments’.

Their findings may offer some explanation for Stanley Milgram's uncomfortable revelations: when following commands, they say, people genuinely feel less responsibility for their actions — whether they are told to do something evil or benign.

“If others can replicate this, then it is giving us a big message,” says neuroethicist Walter Sinnot-Armstrong of Duke University in Durham, North Carolina, who was not involved in the work. “It may be the beginning of an insight into why people can harm others if coerced: they don’t see it as their own action.”

The study may feed into a long-running legal debate about the balance of personal responsibility between someone acting under instruction and their instructor, says Patrick Haggard, a cognitive neuroscientist at University College London, who led the work, published on 18 February in Current Biology 1 .

Milgram’s original experiments were motivated by the trial of Nazi Adolf Eichmann, who famously argued that he was ‘just following orders’ when he sent Jews to their deaths. The new findings don’t legitimize harmful actions, Haggard emphasizes, but they do suggest that the ‘only obeying orders’ excuse betrays a deeper truth about how a person feels when acting under command.

Ordered to shock

In a series of experiments at Yale University in New Haven, Connecticut, in the 1960s, Milgram told his participants that a man was being trained to learn word pairs in a neighbouring room. The participants had to press a button to deliver an electric shock of escalating strength to the learner when he made an error; when they did so, they heard his cries of pain. In reality, the learner was an actor, and no shock was ever delivered. Milgram’s aim was to see how far people would go when they were ordered to step up the voltage.

Routinely, an alarming two-thirds of participants continued to step up shocks, even after the learner was apparently rendered unconscious. But Milgram did not assess his participants’ subjective feelings as they were coerced into doing something unpleasant. And his experiments have been criticized for the deception that they involved — not just because participants may have been traumatized, but also because some may have guessed that the pain wasn’t real.

Modern teams have conducted partial and less ethically complicated replications of Milgram’s work. But Haggard and his colleagues wanted to find out what participants were feeling. They designed a study in which volunteers knowingly inflicted real pain on each other, and were completely aware of the experiment’s aims.

Because Milgram’s experiments were so controversial, Haggard says that he took “quite a deep breath before deciding to do the study”. But he says that the question of who bears personal responsibility is so important to the rule of law that he thought it was “worth trying to do some good experiments to get to the heart of the matter.”

Sense of agency

In his experiments, the volunteers (all were female, as were the experimenters, to avoid gender effects) were given £20 (US$29). In pairs, they sat facing each other across a table, with a keyboard between them. A participant designated the ‘agent’ could press one of two keys; one did nothing. But for some pairs, the other key would transfer 5p to the agent from the other participant, designated the ‘victim’; for others, the key would also deliver a painful but bearable electric shock to the victim’s arm. (Because people have different tolerances to pain, the level of the electric shock was determined for each individual before the experiment began.) In one experiment, an experimenter stood next to the agent and told her which key to press. In another, the experimenter looked away and gave the agent a free choice about which key to press.

To examine the participants’ ‘sense of agency’ — the unconscious feeling that they were in control of their own actions — Haggard and his colleagues designed the experiment so that pressing either key caused a tone to sound after a few hundred milliseconds, and both volunteers were asked to judge the length of this interval. Psychologists have established that people perceive the interval between an action and its outcome as shorter when they carry out an intentional action of their own free will, such as moving their arm, than when the action is passive, such as having their arm moved by someone else.

When they were ordered to press a key, the participants seemed to judge their action as more passive than when they had free choice — they perceived the time to the tone as longer.

In a separate experiment, volunteers followed similar protocols while electrodes on their heads recorded their neural activity through EEG (electroencephalography). When ordered to press a key, their EEG recordings were quieter — suggesting, says Haggard, that their brains were not processing the outcome of their action. Some participants later reported feeling reduced responsibility for their action.

Unexpectedly, giving the order to press the key was enough to cause the effects, even when the keystroke led to no physical or financial harm. “It seems like your sense of responsibility is reduced whenever someone orders you to do something — whatever it is they are telling you to do,” says Haggard.

The study might inform legal debate, but it also has wider relevance to other domains of society, says Sinnot-Armstrong. For example, companies that want to create — or avoid — a feeling of personal responsibility among their employees could take its lessons on board.

Caspar, E. A., Christensen, J. F., Cleeremans, A. & Haggard, P. Curr. Biol. http://dx.doi.org/10.1016/j.cub.2015.12.067 (2016).

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Classic Psychology Experiments

The history of psychology is filled with fascinating studies and classic psychology experiments that helped change the way we think about ourselves and human behavior. Sometimes the results of these experiments were so surprising they challenged conventional wisdom about the human mind and actions. In other cases, these experiments were also quite controversial.

Some of the most famous examples include Milgram's obedience experiment and Zimbardo's prison experiment. Explore some of these classic psychology experiments to learn more about some of the best-known research in psychology history.

Harlow’s Rhesus Monkey Experiments

In a series of controversial experiments conducted in the late 1950s and early 1960s, psychologist Harry Harlow demonstrated the powerful effects of love on normal development. By showing the devastating effects of deprivation on young rhesus monkeys , Harlow revealed the importance of love for healthy childhood development.

His experiments were often unethical and shockingly cruel, yet they uncovered fundamental truths that have heavily influenced our understanding of child development.

In one famous version of the experiments, infant monkeys were separated from their mothers immediately after birth and placed in an environment where they had access to either a wire monkey "mother" or a version of the faux-mother covered in a soft-terry cloth. While the wire mother provided food, the cloth mother provided only softness and comfort.

Harlow found that while the infant monkeys would go to the wire mother for food, they vastly preferred the company of the soft and comforting cloth mother. The study demonstrated that maternal bonds   were about much more than simply providing nourishment and that comfort and security played a major role in the formation of attachments .

Pavlov’s Classical Conditioning Experiments

The concept of classical conditioning is studied by every entry-level psychology student, so it may be surprising to learn that the man who first noted this phenomenon was not a psychologist at all. Pavlov was actually studying the digestive systems of dogs when he noticed that his subjects began to salivate whenever they saw his lab assistant.

What he soon discovered through his experiments was that certain responses (drooling) could be conditioned by associating a previously neutral stimulus (metronome or buzzer) with a stimulus that naturally and automatically triggers a response (food). Pavlov's experiments with dogs established classical conditioning.

The Asch Conformity Experiments

Researchers have long been interested in the degree to which people follow or rebel against social norms. During the 1950s, psychologist Solomon Asch conducted a series of experiments designed to demonstrate the powers of conformity in groups.  

The study revealed that people are surprisingly susceptible to going along with the group, even when they know the group is wrong.​ In Asch's studies, students were told that they were taking a vision test and were asked to identify which of three lines was the same length as a target line.

When asked alone, the students were highly accurate in their assessments. In other trials, confederate participants intentionally picked the incorrect line. As a result, many of the real participants gave the same answer as the other students, demonstrating how conformity could be both a powerful and subtle influence on human behavior.

Skinner's Operant Conditioning Experiments

Skinner studied how behavior can be reinforced to be repeated or weakened to be extinguished. He designed the Skinner Box where an animal, often a rodent, would be given a food pellet or an electric shock. A rat would learn that pressing a level delivered a food pellet. Or the rat would learn to press the lever in order to halt electric shocks.

Then, the animal may learn to associate a light or sound with being able to get the reward or halt negative stimuli by pressing the lever. Furthermore, he studied whether continuous, fixed ratio, fixed interval , variable ratio, and variable interval reinforcement led to faster response or learning.

Milgram’s Obedience Experiments

In Milgram's experiment , participants were asked to deliver electrical shocks to a "learner" whenever an incorrect answer was given. In reality, the learner was actually a confederate in the experiment who pretended to be shocked. The purpose of the experiment was to determine how far people were willing to go in order to obey the commands of an authority figure.

Milgram  found that 65% of participants were willing to deliver the maximum level of shocks   despite the fact that the learner seemed to be in serious distress or even unconscious.

Why This Experiment Is Notable

Milgram's experiment is one of the most controversial in psychology history. Many participants experienced considerable distress as a result of their participation and in many cases were never debriefed after the conclusion of the experiment. The experiment played a role in the development of ethical guidelines for the use of human participants in psychology experiments.

The Stanford Prison Experiment

Philip Zimbardo's famous experiment cast regular students in the roles of prisoners and prison guards. While the study was originally slated to last 2 weeks, it had to be halted after just 6 days because the guards became abusive and the prisoners began to show signs of extreme stress and anxiety.

Zimbardo's famous study was referred to after the abuses in Abu Ghraib came to light. Many experts believe that such group behaviors are heavily influenced by the power of the situation and the behavioral expectations placed on people cast in different roles.

It is worth noting criticisms of Zimbardo's experiment, however. While the general recollection of the experiment is that the guards became excessively abusive on their own as a natural response to their role, the reality is that they were explicitly instructed to mistreat the prisoners, potentially detracting from the conclusions of the study.

Van rosmalen L, Van der veer R, Van der horst FCP. The nature of love: Harlow, Bowlby and Bettelheim on affectionless mothers. Hist Psychiatry. 2020. doi:10.1177/0957154X19898997

Gantt WH . Ivan Pavlov . Encyclopaedia Brittanica .

Jeon, HL. The environmental factor within the Solomon Asch Line Test . International Journal of Social Science and Humanity. 2014;4(4):264-268. doi:10.7763/IJSSH.2014.V4.360 

Koren M. B.F. Skinner: The man who taught pigeons to play ping-pong and rats to pull levers . Smithsonian Magazine .

B.F. Skinner Foundation. A brief survey of operant behavior .

Gonzalez-franco M, Slater M, Birney ME, Swapp D, Haslam SA, Reicher SD. Participant concerns for the Learner in a Virtual Reality replication of the Milgram obedience study. PLoS ONE. 2018;13(12):e0209704. doi:10.1371/journal.pone.0209704

Zimbardo PG. Philip G. Zimbardo on his career and the Stanford Prison Experiment's 40th anniversary. Interview by Scott Drury, Scott A. Hutchens, Duane E. Shuttlesworth, and Carole L. White. Hist Psychol. 2012;15(2):161-170. doi:10.1037/a0025884

Le texier T. Debunking the Stanford Prison Experiment. Am Psychol. 2019;74(7):823-839. doi:10.1037/amp0000401

Perry G. Deception and illusion in Milgram's accounts of the Obedience Experiments . Theoretical & Applied Ethics . 2013;2(2):79-92.

Specter M. Drool: How Everyone Gets Pavlov Wrong . The New Yorker. 2014; November 24.

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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Explanations for Obedience - Milgram (1963)

Last updated 22 Mar 2021

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Milgram (1963) conducted one of the most famous and influential psychological investigations of obedience. He wanted to find out if ordinary American citizens would obey an unjust order from an authority figure and inflict pain on another person because they were instructed to.

Milgram’s sample consisted of 40 male participants from a range of occupations and backgrounds. The participants were all volunteers who had responded to an advert in a local paper, which offered $4.50 to take part in an experiment on ‘punishment and learning’.

The 40 participants were all invited to a laboratory at Yale University and upon arrival they met with the experimenter and another participant, Mr Wallace, who were both confederates.

The experimenter explained that one person would be randomly assigned the role of teacher and the other, a learner. However, the real participant was always assigned the role of teacher. The experimenter explained that the teacher, the real participant, would read the learner a series of word pairs and then test their recall. The learner, who was positioned in an adjacent room, would indicate his choice using a system of lights. The teacher was instructed to administer an electric shock ever time the learner made a mistake and to increase the voltage after each mistake.

The teacher watched the learner being strapped to the electric chair and was given a sample electric shock to convince them that the procedure was real. The learner wasn’t actually strapped to the chair and gave predetermined answers to the test. As the electric shocks increased the learner’s screams, which were recorded, became louder and more dramatic. At 180 volts the learner complained of a weak heart. At 300 volts he banged on the wall and demanded to leave and at 315 volts he became silent, to give the illusions that was unconscious, or even dead.

The experiment continued until the teacher refused to continue, or 450 volts was reached. If the teacher tried to stop the experiment, the experimenter would respond with a series of prods, for example: ‘The experiment requires that you continue.’ Following the experiment the participants were debriefed.

Milgram found that all of the real participants went to at least 300 volts and 65% continued until the full 450 volts. He concluded that under the right circumstances ordinary people will obey unjust orders.

Milgram’s study has been heavily criticised for breaking numerous ethical guidelines, including: deception , right to withdraw and protection from harm.

Milgram deceived his participants as he said the experiment was on ‘punishment and learning’, when in fact he was measuring obedience, and he pretended the learner was receiving electric shocks. In addition, it was very difficult for participants with withdraw from the experiment, as the experimenter prompted the participants to continue. Finally, many of the participants reported feeling exceptionally stressed and anxious while taking part in the experiment and therefore they were not protect from psychological harm. This is an issue, as Milgram didn’t respect his participants, some of whom felt very guilt following the experiment, knowing that they could have harmed another person. However, it must be noted that it was essential for Milgram to deceive his participants and remove their right to withdraw to test obedience and produce valid results. Furthermore, he did debrief his participants following the experiment and 83.7% of participants said that they were happy to have taken part in the experiment and contribute to scientific research.

Milgram’s study has been criticised for lacking ecological validity. Milgram tested obedience in a laboratory, which is very different to real-life situations of obedience, where people are often asked to follow more subtle instructions, rather than administering electric shocks. As a result we are unable to generalise his findings to real life situations of obedience and cannot conclude that people would obey less severe instructions in the same way.

Finally, Milgram’s research lacked population validity. Milgram used a bias sample of 40 male volunteers, which means we are unable to generalise the results to other populations, in particular females, and cannot conclude if female participants would respond in a similar way.

• Ethical Issues
• Right to withdraw
• Protection from harm

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Stanley Milgram (Psychologist Biography)

In 2002, the Review of General Psychology listed Milgram as the 46th most eminent psychologist of the 20th century.

Who Is Stanley Milgram?

Stanley Milgram was an American social psychologist, researcher, and author. He is best known for his infamous obedience experiment. Milgram’s work contributed significantly to a deeper understanding of human nature and helped to establish ethical standards for future psychology experiments. 

Stanley Milgram's Early Life

Stanley Milgram was born on August 15, 1933, in the Bronx, New York. He was the second of three children born to Samuel and Adele Milgram, working-class Jewish immigrants from Eastern Europe. Milgram’s mother was from Romania and his father, from Hungary. His father was a baker and his mother worked in the bakery.

Samuel and Adele Milgram were hardworking people who impressed upon their children the importance of education and having a profession. Milgram’s sister, Marjorie, was a year and a half older than he was, and his brother, Joel, was five years younger. Stanley enjoyed a very close relationship with Joel, who was always proud of his older brother’s achievements.

The Milgram family lived in a neighbourhood that consisted primarily of Jewish immigrants. As a child, Milgram had very little interaction with, or knowledge about, the non-Jewish world. The year of his birth was also the year Adolf Hitler took control of Germany, and with the rise of Nazism, his parents became increasingly concerned about the welfare of their Jewish relatives in Europe. Milgram witnessed their constant worry and as a boy, often huddled with them around the radio listening anxiously to news about the war that had broken out in Europe.

The events in Europe had a significant impact on Milgram, who identified with the suffering of his fellow Jews at the hands of the Nazis. In his bar mitzvah speech, he reflected on their tragic fate and referred to it as part of his own heritage. His concern over the Jewish community in Europe remained with him long into adulthood and even helped to shape his famous obedience experiments.

Philip Zimbardo and Stanley Milgram

As a boy, Milgram displayed above-average intelligence. He shied away from sports and while other children played in the streets, he spent his time exploring science. He was gifted a chemistry set by an older cousin and enjoyed mixing different chemicals together and observing the reaction. On one occasion, he and his friends lowered a container of sodium into the Bronx River and the resulting explosion caused fire engines to rush to the site.

Milgram attended James Monroe High School in the Bronx, where he became classmates with another future prominent psychologist, Philip Zimbardo . His primary focus during this time was on getting into college and excelling academically. Milgram was a member of Arista, an honor society, and served as an editor for the school paper. He also had an interest in drama and assisted with stagecraft for his school’s productions.

Educational Background

After completing high school, Milgram attended Queens College, which later became part of the City University of New York (CUNY). While there, he was appointed vice president of the International Relations Club and the Debating Club. He graduated in 1954 with a bachelor’s degree in political science. By that time, however, Milgram had become dissatisfied with the philosophical nature of political science. His interest shifted to social psychology which he believed offered a more practical approach to the issues that were of interest to him. For example, he wanted to better understand how Hitler was able to seize control of Germany and initiate the Holocaust.

Milgram applied for graduate studies in social psychology at Harvard but was initially rejected as he had no background in psychology. Determined to pursue his goal, he signed up for several psychology courses during the summer of 1954 at three different institutions - Hunter College, Brooklyn College, and New York University. He was later admitted to Harvard in the fall of that year and was awarded a Ford Foundation fellowship to pursue his studies. He graduated with a PhD in social psychology in 1960.

What Inspired Stanley Milgram to Study Social Influence?

Several faculty members at Harvard had a significant impact on Milgram’s academic and professional career, including prominent psychologists Jerome Bruner, Gordon Allport, and Roger Brown. His greatest scientific influence, however, was Solomon Asch , who served as a visiting lecturer at Harvard from 1955 to 1956. During that time, Milgram worked as Asch’s teaching and research assistant, getting a firsthand view of his experiments.

Milgram was particularly interested in Asch’s conformity studies and adapted Asch’s methods to a study of cross-cultural differences in conformity between Norway and France. He spent eighteen months between Oslo and Paris conducting this research which served as the basis of his doctoral dissertation. The study was completed under the direction of Gordon Allport. Between 1959 and 1960, Milgram took a part time job as a research (and editing) assistant to Asch at the Institute for Advanced Study in Princeton, New Jersey.

After completing his PhD, Milgram was offered a position as assistant professor of social psychology at Yale University, where his research focus shifted to the subject of obedience. In 1963, he accepted a similar position in Harvard’s social relations department but was unable to secure tenure at that university. Disappointed by this fact, he left Harvard in 1967 and joined the faculty at CUNY as professor and head of their social psychology graduate program. He did not plan on staying at CUNY for more than five years as he had hopes of working at a more prestigious university. However, the experience turned out to be much better than he had anticipated, and he remained there for the rest of his career.

Milgram’s Obedience Experiment

Milgram conducted his highly influential and controversial obedience experiment while he was an assistant professor at Yale University. Milgram was inspired to design his experiments after Adolf Eichmann, one of the organizers of the Holocaust, was captured in 1960 by Israeli intelligence agents in Argentina. Eichmann was forced to stand trial in Israel in 1961, fifteen years after he escaped from a detention camp at the end of World War II. Like several other Nazi officers who stood trial for war crimes in Nuremberg in 1946, the basis of Eichmann’s defence was that he was just following orders from his superiors.

Milgram began his obedience experiment in July 1961, a year after Eichmann’s trial ended. He was interested in the reasons presented by the defense to justify the acts of genocide committed by the Nazis. Could it be that these Nazi officers were nothing more than obedient soldiers carrying out the grisly orders given to them by authority figures? Milgram wanted to find out.

How the Obedience Experiment Worked

The obedience experiment was designed to show the extent to which regular people would obey orders if it meant seriously hurting another person. Milgram attracted male subjects by running an ad in a local newspaper and had them draw lots to see if they would play the role of “teacher” or “learner” in an experiment to improve memory. The draw was rigged so that the subject was always assigned the role of the teacher. Unknown to the teacher, the learner was actually working with Milgram and was fully aware of the real purpose of the study.

At the start of the experiment, the teacher watched as the learner was taken to a room, strapped securely to a chair, and fitted with electrodes. The teacher was then taken to a second room and seated in front of an electric shock generator. There were thirty switches on the shock generator and they were labeled from 15 volts (Slight Shock) to 375 volts (Danger: Severe Shock) to 450 volts (XXX). The fact that no real electric shocks were involved in the study was kept secret from the teacher. An experimenter (or authority figure) was also present in the room with the teacher to help direct the experiment. Only a screen separated the room with the learner from the second room with the teacher and the experimenter.

The learner was required to learn a list of word pairs. The teacher was asked to test the learner by presenting a word on the list and asking for the matching word from four possible choices. For each incorrect answer, the teacher was told to administer a shock of increasing voltage.

The learner intentionally gave wrong answers on the word tests. As a result, the teacher was required to shock the learner for each wrong answer while increasing the voltage each time. As the “shocks” increased in voltage, the teacher was able to hear the learner banging on the wall, screaming, protesting, and begging from the adjoining room. If the teacher refused to shock the learner any further, the experimenter (authority figure) would give the teacher a simple order to continue the experiment.

There were four orders or prods that the experimenter used. If the first order was not obeyed, the experimenter gave the next order on the list. If the second order was also ignored by the teacher, the experimenter moved to the third order, and then the fourth if necessary. These orders included:

• Please continue.
• The experiment requires you to continue.
• It is absolutely essential that you continue
• You have no other choice but to continue

The experimenter also assured the teacher that he (the experimenter) would assume full responsibility for anything that happened. The experiment was stopped if (1) the teacher refused to shock the learner after the fourth prod from the experimenter, or (2) if the teacher gave three 450 volt shocks to the learner.

Results of Milgram's Obedience Experiment

In Milgram’s obedience experiment all the subjects (teachers) administered shocks of up to 300 volts. Although many were reluctant, 65% of the subjects maintained their obedience to the experimenter and administered the highest possible shock of 450 volts. The experiment was repeated several times with consistent results.

Milgram proposed two theories to explain why normal people would obey an order even if it meant they may severely hurt or kill another person. These are:

• The Theory of Conformism - A person who is not an expert in a particular field will leave decision making to the group he or she belongs to.
• The Agentic State Theory - A person may view himself or herself as nothing more than a tool or agent to carry out the wishes of someone else. This means that the agent no longer assumes responsibility for his or her actions. Once the agent accepts this change in perspective, obedience is likely to follow.

Variations of Milgram’s obedience experiment showed that the teacher was more likely to obey instructions to shock the learner if the learner was in a completely separate room. Milgram believed the incremental manner of increasing the shocks also contributed to obedience. Before conducting the experiment, Milgram conducted a poll among the psychology students at Yale to predict what the outcome of the experiment would be. Very few people, including Milgram, expected any of the subjects to administer the most intense shock.

Milgram's experiment remains one of the most talked-about experiments in the history of psychology.

The Lost-Letter Technique

Milgram developed the lost letter technique in April 1963. He hypothesized that people who live in large cities were less responsive to the needs of their fellow man than people who live in small towns. Milgram also wanted to measure people’s attitudes towards various organizations in the country. To test his hypothesis, Milgram and his colleagues left sealed letters in public that were addressed to “Medical Research Associates,” “Friends of the Nazi Party,” “Friends of the Communist Party,” and an individual by the name of “Mr. Walter Carnup.”

While 70% of the letters addressed to the medical facility and the letters to Mr. Carnup were posted, the other letters caused quite a stir in the community. For example, several of the letters addressed to the “Friends of the Nazi Party” were sent to the FBI for fingerprinting. Milgram tried to conduct a second lost-letter experiment in 1964 by dropping the letters from an airplane. However, many of the letters landed on rooftops, in trees, and in rivers, so he was forced to abort the study.

The Small World Problem

In 1967, Milgram designed the “small-world experiment.” He was curious about how many acquaintances it took to connect two people who didn’t know each other. To find the answer, he sent packages to 160 random people in Omaha, Nebraska, with instructions to send the package to someone they knew who they thought could get it closer to its final destination—a stock broker in Boston, Massachusetts. Along with the package, each original sender was also asked to forward the same set of instructions they had received.

By the time the packages arrived in Boston, some chains had as many as ten acquaintances while others had as few as two. Milgram concluded that there were five acquaintances (or six degrees of separation) between the original senders in Omaha and the final recipient in Boston.

Applications of Milgram’s Obedience Theory

Although it was already well known that people have a tendency to obey authority figures, Milgram’s experiment showed that, in certain settings, individuals may obey destructive orders that conflict with their moral principles and do things they would never decide to do on their own. Milgram believed that once these individuals allowed an authority figure to direct their actions, they also gave up the responsibility of distinguishing what was right from what was wrong.

The findings from Milgram’s obedience experiment have been applied to several fields. Some of these include:

• Criminal justice - to explain why people may commit atrocities if they are placed in certain social contexts. Milgram’s findings have resulted in some condemned criminals receiving life imprisonment rather than the death penalty.
• Counseling - to give people deeper insight into themselves and help them to understand why and how their behavior can change.
• Business - to help workers to recognize unethical demands that may be place on them by their employers
• Law Enforcement - to help people to think for themselves rather than agreeing with everything a police officer says or suggests.

Milgram’s obedience experiment also sheds light on actions people can take to resist unwanted pressure from authority figures. These actions include:

• Questioning the legitimacy of the authority figure
• Asking yourself if you would take the suggested action of your own initiative
• Resisting the urge to comply with small demands that make you uncomfortable because they may escalate to larger demands.
• Finding an ally in your social group who agrees with your view as being a lone dissenter can be very difficult without social support.

Criticisms of Milgram’s Theory

Despite making a major cultural and scholarly impact, the Milgram Obedience Experiment is one of the most widely criticized psychology studies in history. It has been criticized for three primary reasons:

many critics claim the experiment was unethical because it caused many of the subjects to experience severe distress. Some subjects were seen sweating and trembling due to their discomfort but were told to continue the experiment. Also, Milgram did not debrief the subjects immediately after their participation ended. The subjects were not informed about the true intentions of the study and Milgram did not explain why deception was necessary.

Suggested Relevance to the Holocaust

Milgram claimed he was able to mimic the psychological processes that were at play during the Holocaust in his experiment. However, some critics have pointed out several key differences between the events of the Holocaust and Milgram’s obedience experiment such as (1) Holocaust perpetrators knew they were killing innocent people while subjects in the experiment were assured before the study that no permanent physical damage would be done, (2) Holocaust perpetrators were motivated by racism while subjects in the experiment did not know the identity of their learners, (3) Holocaust perpetrators had a clear goal to exterminate Jewish people while subjects in the experiment were often reluctant to continue, and (4) the Holocaust lasted for years and allowed perpretrators enough time to assess their morals while Milgram’s experiment lasted only an hour with little time for the subjects to think deeply about the consequences of their actions.

some critics are disturbed by discrepancies between what the experiment described and what actually happened. One critic, psychologist Gina Perry, believed Milgram intentionally manipulated the data he collected to make the results appear more impressive.

Stanley Migram Books, Awards, and Accomplishments

• Milgram wrote several books that describe his various experiments. They include:
• Obedience to Authority: An Experimental View , 1974
• Television and Antisocial Behavior: Field Experiments , 1974
• The Individual in a Social World: Essays and Experiments , 1977
• He also produced the films Obedience (1965) and The City and the Self (1972).
• Milgram's other awards and accomplishments include:
• Awarded the prize for Behavioral Science Research by the American Association for the Advancement of Science, 1964
• Elected member of the American Association for the Advancement of Science
• Elected member of the American Academy of Arts and Sciences
• Elected member of the American Psychological Association

Personal Life

In January 1961, Milgram met Alexandra Menkin at a party in Manhattan and the two got married in December of that year. Alexandra, who Milgram fondly called Sasha, was a social worker and spent much of her time assisting Holocaust survivors. The couple had two children, Michele and Marc, and Milgram enjoyed playing with, and caring for them.

Milgram was very much invested in his family and set aside time for them in the evenings and on weekends. They went on frequent outings to museums, parks and the movies, and took annual trips to destinations in the Caribbean, United States, Europe, Israel, and Morocco. Milgram insisted on having his wife by his side while watching television and enjoyed taking her out to gourmet restaurants. He also enjoyed playing board games like chess and Monopoly with his family.

Philantrophy

Milgram also gave generously of his time and energy to students, colleagues, and even strangers, responding to virtually all of the many letters he received. He developed several interests outside of academia, including painting, drawing, music composition, and film-making. At home, he would develop fictional plot lines for movies in which his children performed as the stars. He also wrote children’s stories and poems and in his later years, became more keenly interested in the religious and spiritual aspects of the Jewish faith.

Milgram maintained his interest in science and tried to keep abreast of the latest scientific breakthroughs and the scientists behind them. He also spent a great deal of time thinking of and carefully recording various inventions and games. Among these was a machine for rewinding carbon ribbons used in typewriters and a board game centered on the world of art, including auctions and collections.

Is Stanley Milgram Still Alive?

In 1980, Milgram experienced the first of several major heart attacks. He died of his fifth heart attack in 1984. He was 51 years of age.

American Psychological Association. (2004). Obeying and resisting malevolent orders . Retrieved from https://www.apa.org/research/action/order

Blass, T. (1996). Stanley Milgram: A life of inventiveness and controversy. In G. A. Kimble, C. A. Boneau, & M. Wertheimer (Eds.), Portraits of pioneers in psychology: Volume 2 (pp.315-331). Washington, DC: American Psychological Association.

Korn, J. H. (1997). Illusions of reality: A history of deception in social psychology . Albany, NY: State University of New York Press.

Milgram, A. (2000). My personal view of Stanley Milgram. In T. Blass (Ed.), Obedience to authority: Current perspectives on the Milgram paradigm (pp.1-7). Mahwah, NJ: Erlbaum

Perry, G. (2013). Behind the shock machine: The untold story of the notorious Milgram psychology experiments . New York: The New Press.

Rogers, K. (n.d.). Stanley Milgram. In Encyclopedia Britannica . Retrieved from https://www.britannica.com/biography/Stanley-Milgram/Later-experiments-and-publications

Stanley Milgram. (n.d.). Retrieved from https://psychology.fas.harvard.edu/people/stanley-milgram

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November 1, 2012

What Milgram’s Shock Experiments Really Mean

Replicating Milgram's shock experiments reveals not blind obedience but deep moral conflict

By Michael Shermer

In 2010 I worked on a Dateline NBC television special replicating classic psychology experiments, one of which was Stanley Milgram's famous shock experiments from the 1960s. We followed Milgram's protocols precisely: subjects read a list of paired words to a “learner” (an actor named Tyler), then presented the first word of each pair again. Each time Tyler gave an incorrect matched word, our subjects were instructed by an authority figure (an actor named Jeremy) to deliver an electric shock from a box with toggle switches that ranged in 15-volt increments up to 450 volts (no shocks were actually delivered). In Milgram's original experiments, 65 percent of subjects went all the way to the end. We had only two days to film this segment of the show (you can see all our experiments at http://tinyurl.com/3yg2v29 ), so there was time for just six subjects, who thought they were auditioning for a new reality show called What a Pain!

Contrary to Milgram's conclusion that people blindly obey authorities to the point of committing evil deeds because we are so susceptible to environmental conditions, I saw in our subjects a great behavioral reluctance and moral disquietude every step of the way. Our first subject, Emily, quit the moment she was told the protocol. “This isn't really my thing,” she said with a nervous laugh. When our second subject, Julie, got to 75 volts and heard Tyler groan, she protested: “I don't think I want to keep doing this.” Jeremy insisted: “You really have no other choice. I need you to continue until the end of the test.” Despite our actor's stone-cold authoritative commands, Julie held her moral ground: “No. I'm sorry. I can just see where this is going, and I just—I don't—I think I'm good. I think I'm good to go.” When the show's host Chris Hansen asked what was going through her mind, Julie offered this moral insight on the resistance to authority: “I didn't want to hurt Tyler. And then I just wanted to get out. And I'm mad that I let it even go five [wrong answers]. I'm sorry, Tyler.”

Our third subject, Lateefah, became visibly upset at 120 volts and squirmed uncomfortably to 180 volts. When Tyler screamed, “Ah! Ah! Get me out of here! I refuse to go on! Let me out!” Lateefah made this moral plea to Jeremy: “I know I'm not the one feeling the pain, but I hear him screaming and asking to get out, and it's almost like my instinct and gut is like, ‘Stop,’ because you're hurting somebody and you don't even know why you're hurting them outside of the fact that it's for a TV show.” Jeremy icily commanded her to “please continue.” As she moved into the 300-volt range, Lateefah was noticeably shaken, so Hansen stepped in to stop the experiment, asking, “What was it about Jeremy that convinced you that you should keep going here?” Lateefah gave us this glance into the psychology of obedience: “I didn't know what was going to happen to me if I stopped. He just—he had no emotion. I was afraid of him.”

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Our fourth subject, a man named Aranit, unflinchingly cruised through the first set of toggle switches, pausing at 180 volts to apologize to Tyler—“I'm going to hurt you, and I'm really sorry”—then later cajoling him, “Come on. You can do this…. We are almost through.” After completing the experiment, Hansen asked him: “Did it bother you to shock him?” Aranit admitted, “Oh, yeah, it did. Actually it did. And especially when he wasn't answering anymore.” When asked what was going through his mind, Aranit turned to our authority, explicating the psychological principle of diffusion of responsibility: “I had Jeremy here telling me to keep going. I was like, ‘Well, should be everything's all right….’ So let's say that I left all the responsibilities up to him and not to me.”

Human moral nature includes a propensity to be empathetic, kind and good to our fellow kin and group members, plus an inclination to be xenophobic, cruel and evil to tribal others. The shock experiments reveal not blind obedience but conflicting moral tendencies that lie deep within.

SCIENTIFIC AMERICAN ONLINE Comment on this article at ScientificAmerican.com/nov2012

Why We Sometimes Respond to Stress with Aggression

A classic experiment highlights why some people lash out in response to threats..

Posted September 16, 2024 | Reviewed by Devon Frye

• What Is Stress?
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• Find counselling to overcome stress
• Behaving aggressively toward someone or something can effectively relieve stress, a classic study suggests.
• If someone is being aggressive toward you, try to understand their motive. They may be stressed.
• Beware of those who try to manipulate you by turning your frustration into aggression against others.
• There are better ways to cope with stress besides lashing out or running away.

Dr. Henri Laborit, the inventor of the first neuroleptic, devoted years of his career to the study of aggression . In a famous experiment, he subjected rats to stress. This experiment, like Stanley Milgram's electric chair "obedience" experiment, would likely be questioned and possibly not allowed by ethics committees today. But its findings are fundamental.

Electric shocks cause severe pain to rats, as they do to other animals. Laborit designed a rat cage with two compartments separated by a door. A metal floor allowed electric shocks to be delivered alternately in compartments A and B. The cage had a beeper and a light. There were three conditions for the experiment.

In the first condition, the door between the compartments was open. At regular intervals, the light turned red, a warning beep sounded, followed by an electric shock in the floor of one compartment (say: A). The rat quickly learned to flee to the other compartment (from A to B) as soon as the warning sounded.

Then came the next warning; this, time the shocks occurred in compartment B. The rat learned to change compartments alternately as the shocks changed compartments. Thus, the rat learned to avoid the shocks by always changing compartments when the warnings came.

After a week of this treatment (7 minutes a day), the rats stayed perfectly healthy. They learned to control the situation by fleeing.

The second condition was the same as the first, except that the door remained closed. The rats could not escape the electric shocks even after the warning. They could only stand, stressed , as they experienced the shock and subsequently developed anxiety . After a week of this treatment, the rats showed serious symptoms of somatic disorder. Their skin and fur were in poor condition; they lost weight and developed stomach ulcers and chronic high blood pressure.

The third condition was similar to the second: predictable but inescapable electric shocks, door closed. But this time, there were two rats in the same compartment. When the warning came, the rats started fighting each other and stopped after the shock. Interestingly, after a week of this treatment, the rats, apart from the bites and scratches resulting from the fights, appeared to be in perfect health!

These three reactions can be seen as comparable to flight, fight, or freeze. The stress caused by the threat can be transformed into action—whether that action is running away (flight) or attacking (fight). If no action is possible, there is inhibition (freeze), which could lead to psychosomatic disorders, as in the second condition where the symptoms are not directly caused by the shocks.

These results are sobering and may even suggest that when you are stressed, attacking someone else can bring relief. This could explain much of the aggressive behaviour we see—from people who become aggressive when they are stressed at work, to the driver who, when he almost ran you over, insulted you instead of apologizing, perhaps as a way to cope with the huge rush of stress he just experienced.

At a societal level, it could also help explain why it is so easy for cynical politicians to channel the frustration and anger of those who are experiencing harsh living conditions toward some scapegoat (often foreigners, believers of a different religion or ideology, any kind of minority, or whatever "other"). It makes them feel better.

What Explains This Phenomenon?

Evolutionary psychology would argue that this behaviour is partly the result of the evolution of the species. In the wild, much stress comes from aggression by another animal, such as a predator or a conspecific competing for the same resource.

Responding by fleeing or fighting, whichever seems best, is an efficient response. Those individuals who used these strategies increased their chances of survival (and reproduction), so the mechanism was passed on to their descendants and became systematic in the species.

According to Laborit, since the nervous system is designed for action, if you inhibit external action (the flight or fight), you harm yourself (with psychosomatic disorders). It is as if you are deflecting aggression against yourself.

But in reality, the situation is more complicated. First, there are psychological defence mechanisms other than running away or attacking someone else to deal with stress: denial , sublimation , etc. Then, neuroscience is now discovering the complex system of dozens of interwoven mechanisms involved in coping (biochemical cascades top-down, bottom-up, transverse, etc.) For your body, preparing for action with all this biochemistry and emotions, and then inhibiting action, is like preparing a meal for guests and then being told the invitation is cancelled. It creates a mess.

Neuropsychology is still struggling to understand how physiological processes translate into emotions, moods, drives, etc.—and vice versa, the biochemical nitty-gritty of the old body/mind duality. We have only scratched the surface of the complex relationships between the nervous system and the immune system, for example; but now we know they communicate and influence each other—as psychosomatic medicine had anticipated, albeit in simplistic models.

What You Can Do With This Knowledge

But while the mechanisms are not yet fully understood, the sad fact remains that frustration tends to produce aggression as a way of coping. What does that mean for you? I argue that the conclusions to draw from this are fourfold:

• If someone is aggressing you, first try to understand their motive. Often it is because they are stressed. Knowing why will help you deal with the problem (this does not, of course, apply to predatory aggression such as mugging).
• Yes, aggression can give you temporary relief. But it will not solve the problems that are at the root of your frustration and anger. Violence tends to create more problems.
• Flight is a good temporary solution, but it seldom solves the problem.
• Finally, remember that passive coping, turning your aggression against yourself, can have disastrous long-term somatic consequences.

For years I have been discouraged by Laborit's findings because they do not bode well for a world in which stress is increasing with the scarcity of resources and now with climatic events. Will all this end in generalised war, as it is already happening in many parts of the world?

That was until I had an experience that was an epiphany: there is another, fourth way to deal with stress—a productive way so obvious that one wonders why it is not systematically applied instead of blindly following our instincts to flee, attack, or inhibit. I'll discuss that in my next article. Stay tuned.

Kunz, E. (2014). Henri Laborit and the inhibition of action. Dialogues in Clinical Neuroscience , 16 (1), 113–117. https://doi.org/10.31887/DCNS.2014.16.1/EKUNZ

Dantzer, R., O'Connor, J., Freund, G. et al. From inflammation to sickness and depression: when the immune system subjugates the brain. Nat Rev Neurosci 9, 46–56 (2008). https://doi.org/10.1038/nrn2297

Saadi Lahlou, Ph.D., is Chair in social psychology at the London School of Economics and Political Science (LSE) and Director of the Paris Institute for Advanced Study. He is a member of the Academy of Europe (Academia Europaea) and of the National Academy of Technologies of France.

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