bandura's bobo doll experiment was intended to demonstrate

Bandura’s Bobo Doll Experiment on Social Learning

Saul McLeod, PhD

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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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During the 1960s, Albert Bandura conducted a series of experiments on observational learning , collectively known as the Bobo doll experiments. Two of the experiments are described below:

Bandura (1961) conducted a controlled experiment study to investigate if social behaviors (i.e., aggression) can be acquired by observation and imitation.

Bandura, Ross, and Ross (1961) tested 36 boys and 36 girls from the Stanford University Nursery School aged between 3 to 6 years old.

The researchers pre-tested the children for how aggressive they were by observing the children in the nursery and judged their aggressive behavior on four 5-point rating scales.

It was then possible to match the children in each group so that they had similar levels of aggression in their everyday behavior. The experiment is, therefore, an example of a matched pairs design .

To test the inter-rater reliability of the observers, 51 of the children were rated by two observers independently, and their ratings were compared. These ratings showed a very high-reliability correlation (r = 0.89), which suggested that the observers had a good agreement about the behavior of the children.

A lab experiment was used, in which the independent variable (the type of model) was manipulated in three conditions:

• Aggressive model is shown to 24 children
• Non-aggressive model is shown to 24 children
• No model is shown (control condition) – 24 children

Stage 1: Modeling

In the experimental conditions, children were individually shown into a room containing toys and played with some potato prints and pictures in a corner for 10 minutes while either:

• 24 children (12 boys and 12 girls) watched a male or female model behaving aggressively towards a toy called a “Bobo doll”. The adults attacked the Bobo doll in a distinctive manner – they used a hammer in some cases, and in others threw the doll in the air and shouted “Pow, Boom.”
• Another 24 children (12 boys and 12 girls) were exposed to a non-aggressive model who played in a quiet and subdued manner for 10 minutes (playing with a tinker toy set and ignoring the bobo-doll).
• The final 24 children (12 boys and 12 girls) were used as a control group and not exposed to any model at all.

Stage 2: Aggression Arousal

All the children (including the control group) were subjected to “mild aggression arousal.” Each child was (separately) taken to a room with relatively attractive toys.

As soon as the child started to play with the toys, the experimenter told the child that these were the experimenter’s very best toys and she had decided to reserve them for the other children.

Stage 3: Test for Delayed Imitation

• The next room contained some aggressive toys and some non-aggressive toys. The non-aggressive toys included a tea set, crayons, three bears and plastic farm animals. The aggressive toys included a mallet and peg board, dart guns, and a 3 foot Bobo doll.
• The child was in the room for 20 minutes, and their behavior was observed and rated though a one-way mirror. Observations were made at 5-second intervals, therefore, giving 240 response units for each child.
• Other behaviors that didn’t imitate that of the model were also recorded e.g., punching the Bobo doll on the nose.
• Children who observed the aggressive model made far more imitative aggressive responses than those who were in the non-aggressive or control groups.
• There was more partial and non-imitative aggression among those children who had observed aggressive behavior, although the difference for non-imitative aggression was small.
• The girls in the aggressive model condition also showed more physically aggressive responses if the model was male, but more verbally aggressive responses if the model was female. However, the exception to this general pattern was the observation of how often they punched Bobo, and in this case the effects of gender were reversed.
• Boys were more likely to imitate same-sex models than girls. The evidence for girls imitating same-sex models is not strong.
• Boys imitated more physically aggressive acts than girls. There was little difference in verbal aggression between boys and girls.

Bobo doll experiment demonstrated that children are able to learn social behavior such as aggression through the process of observation learning, through watching the behavior of another person. The findings support Bandura’s (1977) Social Learning Theory .

This study has important implications for the effects of media violence on children.

There are three main advantages of the experimental method .

• Experiments are the only means by which cause and effect can be established. Thus, it could be demonstrated that the model did have an effect on the child’s subsequent behavior because all variables other than the independent variable are controlled.
• It allows for precise control of variables. Many variables were controlled, such as the gender of the model, the time the children observed the model, the behavior of the model, and so on.
• Experiments can be replicated. Standardized procedures and instructions were used, allowing for replicability. In fact, the study has been replicated with slight changes, such as using video, and similar results were found (Bandura, 1963).

Limitations of the procedure include:

• Many psychologists are very critical of laboratory studies of imitation – in particular, because they tend to have low ecological validity. The situation involves the child and an adult model, which is a very limited social situation and there is no interaction between the child and the model at any point; certainly the child has no chance to influence the model in any way.
• Also, the model and the child are strangers. This, of course, is quite unlike “normal” modeling, which often takes place within the family.
• Cumberbatch (1990) found that children who had not played with a Bobo Doll before were five times as likely to imitate the aggressive behavior than those who were familiar with it; he claims that the novelty value of the doll makes it more likely that children will imitate the behavior.
• A further criticism of the study is that the demonstrations are measured almost immediately. With such snapshot studies, we cannot discover if such a single exposure can have long-term effects.
• It is possible to argue that the bobo doll experiment was unethical. For example, there is the problem of whether or not the children suffered any long-term consequences as a result of the study. Although it is unlikely, we can never be certain.

Vicarious Reinforcement Bobo Doll Study

An observer’s behavior can also be affected by the positive or negative consequences of a model’s behavior.

So we not only watch what people do, but we watch what happens when they do things. This is known as vicarious reinforcement. We are more likely to imitate behavior that is rewarded and refrain from behavior that is punished.

Bandura (1965) used a similar experimental set up to the one outlined above to test vicarious reinforcement. The experiment had different consequences for the model’s aggression to the three groups of children.

One group saw the model’s aggression being rewarded (being given sweets and a drink for a “championship performance,” another group saw the model being punished for the aggression (scolded), and the third group saw no specific consequences (control condition).

When allowed to enter the playroom, children in the reward and control conditions imitated more aggressive actions of the model than did the children in the punishment condition.

The children in the model punished group had learned the aggression by observational learning, but did not imitate it because they expected negative consequences.

Reinforcement gained by watching another person is known as vicarious reinforcement.

Bandura, A. (1965). Influence of models” reinforcement contingencies on the acquisition of imitative responses . Journal of personality and social psychology, 1(6) , 589.

Bandura, A., Ross, D. & Ross, S.A. (1961). Transmission of aggression through imitation of aggressive models .  Journal of Abnormal and Social Psychology , 63, 575-82.

Bandura, A., Ross, D., & Ross, S. A. (1963). Imitation of film-mediated aggressive models . The Journal of Abnormal and Social Psychology , 66(1), 3.

Bandura, A. (1977). Social Learning Theory . Englewood Cliffs, NJ: Prentice Hall.

Further Information

• Bandura’s Social Learning Theory
• Bobo Doll Study Summary
• BBC Radio 4 Programme: The Bobo Doll
• Bobo Doll Summary PowerPoint

Bandura’s Bobo Doll Experiment (psychology)

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Bobo doll experiment

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• Academia - Bobo Doll Experiment
• Frontiers - Albert Bandura's experiments on aggression modeling in children: A psychoanalytic critique
• Simply Psychology - Bobo Doll Experiment
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• Verywell Mind - What the Bobo Doll Experiment Reveals About Kids and Aggression

Bobo doll experiment , groundbreaking study on aggression led by psychologist Albert Bandura that demonstrated that children are able to learn through the observation of adult behaviour. The experiment was executed via a team of researchers who physically and verbally abused an inflatable doll in front of preschool-age children, which led the children to later mimic the behaviour of the adults by attacking the doll in the same fashion.

Bandura’s study on aggression—the experiment for which he is perhaps best known—was carried out in 1961 at Stanford University , where Bandura was a professor. For this study he used 3- and 5-foot (1- and 1.5-metre) inflatable plastic toys called Bobo dolls, which were painted to look like cartoon clowns and were bottom-weighted so that they would return to an upright position when knocked down. The subjects were preschoolers at Stanford’s nursery school and were divided into three groups: one group observed aggressive adult behaviour models; another group observed nonaggressive behaviour models; and the third group was not exposed to any behaviour models.

The three groups were then divided by gender into six subgroups in which half of the subgroups would observe a same-sex behaviour model and half would observe an opposite-sex behaviour model. In the first stage of the experiment, the children were individually seated at a table in one corner of an experimental room and presented with diverting activities that had previously been shown to be of high interest to the children (e.g., stickers, pictures, prints) in order to discourage active participation and encourage mere observation. The behaviour model was then taken to the opposite corner—which contained another table and chair, a mallet, a Tinkertoy set, and a 5-foot Bobo doll—and was told he or she could play with these materials. In the aggressive behaviour model groups, the model abused the Bobo doll both physically (e.g., kicked, punched, threw, and assaulted with various objects) and verbally (e.g., made aggressive statements such as “Sock him in the nose” and “Pow” or nonaggressive statements such as “He sure is a tough fella” and “He keeps coming back for more”). In the nonaggressive behaviour model groups, the model ignored the Bobo doll and instead quietly assembled the Tinkertoys. After 10 minutes had elapsed, the behaviour models in both groups left the room.

In the second phase of the experiment, the children were taken individually into a different experimental room, where they were presented with a new group of appealing toys (e.g., train, fire engine, cable car, jet airplane, spinning top , doll with wardrobe, baby crib, and doll carriage). To test the hypothesis that the observation of aggression in others would increase the likelihood of aggression in the observer, the children were subjected to aggression arousal in the form of being told after two minutes that they could no longer play with the toys. The children were then told that they could, however, play with the toys in another room, where they were presented with various toys that were considered both aggressive (e.g., 3-foot Bobo doll, mallet, and dart guns) and nonaggressive (e.g., crayons, paper, farm animals, tea set, ball, and dolls).

In the final stage of the experiment, the children’s behaviour was observed over the course of 20 minutes and rated according to the degree of physically and verbally aggressive behaviour they modeled, the results of which yielded significantly higher scores for children in the aggressive behaviour model groups compared with those in both the nonaggressive behaviour model and control groups. Subsequent experiments in which children were exposed to such violence on videotape yielded similar results, with nearly 90 percent of the children in the aggressive behaviour groups later modeling the adults’ behaviour by attacking the doll in the same fashion and 40 percent of the those children exhibiting the same behaviour after eight months.

Although the study yielded similar results for both genders, it nonetheless suggested at least some difference depending on the degree to which a behaviour is sex-typed—that is, viewed as more common of or appropriate for a specific gender. For example, the data suggest that males are somewhat more prone to imitate physical aggression—a highly masculine-typed behaviour—than are females, with male subjects reproducing more physical aggression than female subjects; there were, however, no differences in the imitation of verbal aggression, which is less sex-typed. Additionally, both male and female subjects were more imitative of the male behaviour models than of the female models in terms of physical aggression but were more imitative of the same-sex models in terms of verbal aggression.

Albert Bandura’s Bobo Doll Experiment (Explained)

The Bobo Doll Experiment was a study by Albert Bandura to investigate if social behaviors can be learned by observing others in the action. According to behaviorists, learning occurs only when a behavior results in rewards or punishment. However, Bandura didn't believe the framework of rewards and punishments adequately explained many aspects of everyday human behavior.

According to the Social Learning Theory, people learn most new skills through modeling, imitation, and observation. Bandura believed that people could learn by observing how someone else is rewarded or penalized instead of engaging in the action themselves.

In the hit television show Big Little Lies, tensions run high as an unknown child is accused of choking another student. The child is revealed as Max throughout the series (spoiler alert!). Max has an abusive father, and once Max’s mother realizes that her child is learning behaviors from her husband, she decides to take action. 

This cycle of abuse is sad but extremely common. Many abusers were abused themselves or grew up in an abusive household. These ideas seem obvious, but in the mid-20th century, evidence that supports these ideas was becoming known. 

What is the Bobo Doll Experiment?

In 1961, Albert Bandura conducted the Bobo doll experiment at Stanford University. He placed children in a room with an adult, toys, and a five-foot Bobo Doll. (Bobo Dolls are large inflatable clowns shaped like a bowling ball, so they  roll upward if punched or knocked down.)

Who Conducted the Bobo Doll Experiment?

This experiment made Albert Bandura one of the most renowned psychologists in the history of the world. He is now listed in the ranks of Freud and B.F. Skinner, the psychologist who developed the theory of operant conditioning . 

How Was The Bobo Doll Experiment Conducted?

Let’s start by discussing Bandura’s first Bobo doll experiment from 1961. Bandura conducted the experiment in three parts: modeling, aggression arousal, and a test for delayed imitation. 

Stage 1: Modeling 

The study was separated into three groups, including a control group. An aggressive adult behavior model was shown to one group, a non-aggressive adult behavior model to another, and no behavior models were shown to the third group. In the group with the aggressive adult, some models chose to hit the Bobo doll over the head with a mallet. 

The group with a nonaggressive adult simply observed the model playing with blocks, coloring, or doing non-aggressive activities. 

Stage 2: Aggression Arousal 

After 10 minutes of being in the room with the model, the child was taken into another room. This room had attractive toys; the researchers briefly allowed the children to play with the toys of their choice. Once the child was engaged in play, the researchers removed the toys from the child and took them into yet another room. It’s easy to guess that the children were frustrated, but the researchers wanted to see how they would release that frustration. 

Stage 3: Test For Delayed Imitation 

The third room contained a set of “aggressive” and “non-aggressive toys.” The room also had a Bobo doll. Researchers watched and recorded each child’s behavior through a one-way mirror. 

So what happened?

As you can probably guess, the children who observed the adults hitting the Bobo doll were more likely to take their frustration out on the Bobo doll. They kicked, yelled at, or even used the mallet to hit the doll. The children who observed the non-aggressive adults tended to avoid the Bobo doll and take their frustration out without aggression or violence. 

The Second Bobo Doll Experiment

Albert Bandura did not stop with the 1961 Bobo doll experiment. Two years later, he conducted another experiment with a Bobo doll. This one combined the ideas of modeling with the idea of conditioning. Were people genuinely motivated by consequences, or was there something more to their behavior and attitudes? 

In this experiment, Bandura showed children a video of a model acting aggressively toward the Bobo doll. Three groups of children individually observed a different final scene in the video. The children in the control group did not see any scene other than the model hitting the Bobo doll. In another group, the children observed the model getting rewarded for their actions. The last group saw the model getting punished and warned not to act aggressively toward the Bobo doll. 

All three groups of children were then individually moved to a room with toys and a Bobo doll. Bandura observed that the children who saw the model receiving a punishment were less likely to be aggressive toward the doll. 

A second observation was especially interesting. When researchers asked the children to act aggressively toward the Bobo doll, as they did in the movie, the children did.

This doesn’t sound significant, but it does make an interesting point about learned behaviors. The children learn the behavior by watching the model and observing their actions. Learning (aka remembering) the learning of the model’s actions occurred simply because the children were there to observe them.

Consequences simply influenced whether or not the children decided to perform the learned behaviors. The memory of the aggression was still present, whether or not the child saw that the aggression was rewarded or punished. 

Is The Bobo Doll Experiment An Example of Operant Conditioning or Classical Conditioning?

Neither! Since operant and classical conditioning rely on explicit rewards or penalties to affect behavior repetition, they fall short of capturing the full scope of human learning. Conversely, observational learning is not dependent on these rewards. Albert Bandura's well-known "Bobo Doll" experiment is a striking example.

This experiment proved that without firsthand experience or outside rewards and penalties, people might learn only by watching others. The behaviorist ideas of the time, which were primarily dependent on reinforcement, faced a severe challenge from Bandura's research.

Criticism of the Bobo Doll Experiment

A Reddit user on the TodayILearned subreddit made a good point on how the Bobo Doll Experiment was conducted: 

"A significant criticism of this study is that the Bobo doll is MEANT to be knocked around. It’s an inflatable toy with a weight at the bottom, it rocks back and forth and stands back up after it is hit.

How do we know that the kids didn’t watch the adults knock over the toy and say, 'That looks fun!' and then mimic them? These types of toys are still often sold as punching bag toys for kids. This study would have much more validity if they had used a different type of toy."

Bobo Doll Impact

There’s one more piece of the 1963 study that is worth mentioning. While some children in the experiment watched a movie, others watched a live model. Did this make a huge difference in whether or not the child learned and displayed aggressive behaviors?

Not really.

The Bobo Doll experiment has frequently been cited in discussions among psychologists and researchers, especially when debating the impact of violent media on children. A wealth of research has sought to determine whether children engage with violent video games and consume violent media, does it increase their likelihood to act out violently? Or, as suggested by the Bobo Doll experiment, do children merely internalize these behaviors and still maintain discretion over whether to act on them or not?

Multiple studies have aimed to tackle this question. For instance, research from the American Psychological Association has pointed to a link between violent video games and increased aggression, though not necessarily criminal violence. However, other sources, such as the Oxford Internet Institute , have found limited evidence to support a direct link between game violence and real-world violent actions. Despite the varying findings, the influence of Albert Bandura's introduction of observational learning and social learning theory cannot be understated. His Bobo Doll experiments remain pivotal in psychology's rich history.

Related posts:

• Albert Bandura (Biography + Experiments)
• 3 Theories of Aggression (Psychology Explained)

Observational Learning

• 40+ Famous Psychologists (Images + Biographies)
• Learning (Psychology)

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Operant Conditioning

Classical Conditioning

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What the Bobo Doll Experiment Reveals About Kids and Aggression

• The Experiment

The question of how children learn to engage in violent behavior has been of great interest to parents and researchers alike. In the 1960s, psychologist Albert Bandura and his colleagues conducted what is now known as the Bobo doll experiment, and they demonstrated that children may learn aggression through observation.

Aggression lies at the root of many social ills ranging from interpersonal violence to war. It is little wonder, then, that the subject is one of the most studied topics within psychology.

This article covers what the Bobo doll experiment is, its findings on childhood aggression, as well as its impact on psychology.

The Bobo Doll Experiment

The participants for the experiment were 36 boys and 36 girls enrolled at the Stanford University Nursery School. The children ranged in age between 3 and almost 6 years.

The experiment involved exposing one group of 24 children to an adult modeling aggressive behavior, and another group of 24 children to an adult modeling non-aggressive behavior. The final group of 24 children acted as the control group that was not exposed to adult models.

These groups were divided again into groups of boys and girls. Each of these subgroups was then divided so that half of the participants would be exposed to a same-sex adult model and the other half would be exposed to an opposite-sex adult model.

Each child was tested individually to ensure that their behavior would not be influenced by other children. The child was first brought into a playroom where there were a number of different activities to explore. The experimenter then invited the adult model into the playroom.

In the non-aggressive condition, the adult model simply played with the toys and ignored the Bobo doll for the entire period. In the aggressive model condition, however, the adult models would violently attack the Bobo doll.

The aggressive models would punch Bobo, strike Bobo with a mallet, toss the doll in the air, and kick it around the room. They would also use " verbally aggressive phrases" such as "Kick him" and "Pow." The models also added two non-aggressive phrases: "He sure is a tough fella" and "He keeps coming back for more."

After the ten-minute exposure to the adult model, each child was then taken to another room that contained a number of appealing toys including a doll set, fire engine, and toy airplane.

The children were permitted to play for a brief two minutes, then told they were no longer allowed to play with any of these tempting toys. The purpose of this was to build up frustration levels among the young participants.

Finally, each child was taken to the last experimental room. This room contained a number of "aggressive" toys including a mallet, a tether ball with a face painted on it, dart guns, and, of course, a Bobo doll. The room also included several "non-aggressive" toys including crayons, paper, dolls, plastic animals, and trucks.

Each child was then allowed to play in this room for a period of 20 minutes. During this time, researchers observed the child's behavior from behind a one-way mirror and judged each child's levels of aggression.

Predictions

Bandura made several key predictions about what would occur during the Bobo doll experiment.

• Boys would behave more aggressively than girls.
• Children who observed an adult acting aggressively would be likely to act aggressively, even when the adult model was not present.
• Children would be more likely to imitate models of the same sex rather than models of the opposite sex.
• The children who observed the non-aggressive adult model would be less aggressive than the children who observed the aggressive model; the non-aggressive exposure group would also be less aggressive than the control group.

The results of the experiment supported some of the original predictions, but also included some unexpected findings:

• Bandura and his colleagues had predicted that children in the non-aggressive group would behave less aggressively than those in the control group. The results indicated that while children of both genders in the non-aggressive group did tend to exhibit less aggression than the control group, boys who had observed a non-aggressive, opposite-sex model were more likely than those in the control group to engage in violence.
• Children exposed to the violent model tended to imitate the exact behavior they had observed when the adult model was no longer present.
• Researchers were correct in their prediction that boys would behave more aggressively than girls. Boys engaged in more than twice as many acts of physical aggression than the girls.
• There were important gender differences when it came to whether a same-sex or opposite-sex model was observed. Boys who observed adult males behaving violently were more influenced than those who had observed female models behaving aggressively.
• Interestingly, the experimenters found in same-sex aggressive groups, boys were more likely to imitate physical acts of violence while girls were more likely to imitate verbal aggression.

Impact of the Bobo Doll Experiment

Results of the experiment supported Bandura's social learning theory.

According to Bandura's social learning theory, learning occurs through observations and interactions with other people. Essentially, people learn by watching others and then imitating these actions.

Bandura and his colleagues believed that the Bobo doll experiment demonstrates how specific behaviors can be learned through observation and imitation.

According to Bandura, the violent behavior of the adult models toward the dolls led children to believe that such actions were acceptable.

Bandura also suggested that as a result, children may be more inclined to respond to frustration with aggression in the future.

In a follow-up study conducted in 1965, Bandura found that while children were more likely to imitate aggressive behavior if the adult model was rewarded for his or her actions, they were far less likely to imitate if they saw the adult model being punished or reprimanded for their hostile behavior.

The conclusions drawn from the Bobo doll experiment may help explain human behavior in many areas of life. For instance, the idea that children will imitate the abusive behavior that they witness may provide insight into domestic violence .

Adolescents who grow up witnessing abuse in their homes may be more likely to display violent behavior themselves, and view aggression as an appropriate response to solve interpersonal problems.

Research has found that the Bobo doll experiment and its follow-up study shed light on bullying . For instance, when leadership doesn't give negative consequences for workplace bullying, the bullying is more likely to persist.

Therefore, it's important that aggressive or violent behavior is not tolerated by those with power—whether it's at the workplace, in schools, or at home—or else the aggression is likely to continue and may influence young people who witness it.

Criticism of the Bobo Doll Experiment

Critics point out that acting violently toward a doll is a lot different than displaying aggression or violence against another human being in a real-world setting.

In other words, a child acting violently toward a doll doesn't necessarily indicate they'll act violently toward a person.

Because the experiment took place in a lab setting, some critics suggest that results observed in this type of location may not be indicative of what takes place in the real world.

It has also been suggested that children were not actually motivated to display aggression when they hit the Bobo doll; instead, they may have simply been trying to please the adults. It's worth noting that the children didn't actually hurt the Bobo doll, nor did they think they were hurting it.

In addition, by intentionally frustrating the children, some argue that the experimenters were essentially teaching the children to be aggressive.

It's also not known whether the children were actually aggressive or simply imitating the behavior without aggressive intent (most children will imitate behavior right after they see it, but they don't necessarily continue it in the long term).

Since data was collected immediately, it is also difficult to know what the long-term impact might have been.

Additional criticisms note the biases of the researchers. Since they knew that the children were already frustrated, they may have been more likely to interpret the children's actions as aggressive.

The study may also suffer from selection bias. All participants were drawn from a narrow pool of students who share the same racial and socioeconomic background. This makes it difficult to generalize the results to a larger, more diverse population.

A Word From Verywell

Bandura's experiment remains one of the most well-known studies in psychology. Today, social psychologists continue to study the impact of observed violence on children's behavior. In the decades since the Bobo doll experiment, there have been hundreds of studies on how observing violence impacts children's behavior.

Today, researchers continue to ponder the question of whether the violence children witness on television, in the movies, or through video games translates to aggressive or violent behavior in the real world.

Bandura A. Influence of models' reinforcement contingencies on the acquisition of imitative responses . Journal of Personality and Social Psychology. 1965;1:589-595. doi:10.1037/h0022070

Xia Y, Li S, Liu TH. The interrelationship between family violence, adolescent violence, and adolescent violent victimization: An application and extension of the cultural spillover theory in China . IJERPH. 2018;15(2):371. doi:10.3390/ijerph15020371

Hollis LP. Lessons from Bandura’s Bobo doll experiments: Leadership’s deliberate indifference exacerbates workplace bullying in higher education . JSPTE. 2019;4:085-102. doi:10.28945/4426

Altin D, Jablonski J, Lyke J, et al. Gender difference in perceiving aggression using the Bobo doll studies . Modern Psychological Studies. 2011;16:2.

Bandura A, Ross D, Ross SA. Transmission of aggression through imitation of aggressive models . Journal of Abnormal and Social Psychology. 1961;63:575-82. doi:10.1037/h0045925

Ferguson CJ. Blazing Angels or Resident Evil? Can violent video games be a force for good? Review of General Psychology. 2010;14(2) : 68-81. doi:10.1037/a0018941

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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Bobo Doll Experiment

The Bobo Doll Experiment was performed in 1961 by Albert Bandura, to try and add credence to his belief that all human behavior was learned, through social imitation and copying, rather than inherited through genetic factors.

This article is a part of the guide:

• Social Psychology Experiments
• Milgram Experiment
• Stanford Prison Experiment
• Asch Experiment
• Milgram Experiment Ethics

Browse Full Outline

• 1 Social Psychology Experiments
• 2.1 Asch Figure
• 3 Bobo Doll Experiment
• 4 Good Samaritan Experiment
• 5 Stanford Prison Experiment
• 6.1 Milgram Experiment Ethics
• 7 Bystander Apathy
• 8 Sherif’s Robbers Cave
• 9 Social Judgment Experiment
• 10 Halo Effect
• 11 Thought-Rebound
• 12 Ross’ False Consensus Effect
• 13 Interpersonal Bargaining
• 14 Understanding and Belief
• 15 Hawthorne Effect
• 16 Self-Deception
• 17 Confirmation Bias
• 18 Overjustification Effect
• 19 Choice Blindness
• 20.1 Cognitive Dissonance
• 21.1 Social Group Prejudice
• 21.2 Intergroup Discrimination
• 21.3 Selective Group Perception

These findings are still debated about over 40 years later.

In the modern world, there are many concerns about the effect of social influences on the development and growth of a child's personality and morality.

Television, computer games, food additives, music and the lack of role models are all cited as reasons for a supposed breakdown in society, and an increased tendency towards violence.

These concerns have existed for many years, even before the media turned these factors into sensationalist stories, to try and sell more newspapers. During the 1960's, there was a lot of concern and debate about whether a child's development was down to genetics, environmental factors or social learning from others around them.

For this purpose, Bandura designed the Bobo Doll Experiment to try and prove that children would copy an adult role model's behavior. He wanted to show, by using aggressive and non-aggressive actors, that a child would tend to imitate and learn from the behavior of a trusted adult.

The Bobo doll is an inflatable toy about five feet tall, designed to spring back upright when knocked over.

Children were chosen as subjects for the study, because they have less social conditioning; they have also had less instruction and teaching of the rules of society than adult subjects.

Hypotheses and Predictions

Bandura had a number of predictions about the outcomes of the Bobo Doll Experiment, fitting with his views on the theories of social learning.

• Children witnessing an adult role model behaving in an overly aggressive manner would be likely to replicate similar behavior themselves, even if the adult was not present.
• Subjects who had observed a non-aggressive adult would be the least likely to show violent tendencies, even if the adult was not present. They would be even less likely to exhibit this type of aggression than the control group of children, who had seen no role model at all.
• Bandura believed that children would be much more likely to copy the behavior of a role model of the same sex. He wanted to show that it was much easier for a child to identify and interact with an adult of the same gender.
• The final prediction was that male children would tend to be more aggressive than female children, because society has always tolerated and advocated violent behavior in men more than women.

Setting Up the Experiment

For the Bobo Doll Experiment, Bandura selected a number of children from the local Stanford Nursery School, varying in age from 3 to 6 years, with the average age being 4 years and 4 months.

To test the prediction that boys would be more prone to aggression than girls, he picked 36 subjects of each sex.

The control group , which would not see an adult role model at all, consisted of 24 children, 12 boys and 12 girls.

The second group, which would be exposed to an adult showing aggressive tendencies, was similarly made up of 24 children of either sex. Both of the resulting groups of 12 were further divided; half would be tested with a female role model, half with a male role model.

The third group was structured in exactly the same way as the second, the only difference being that they would be exposed to a passive adult.

For the Bobo Doll Experiment, it was necessary to pre-select and sort the children, to try and ensure that there was an even spread of personality types across the test groups; some subjects already known to be more aggressive in personality than others.

For this, one of the teachers from the nursery worked with the experimenter, to rate each child's personality and attempt to construct well balanced groups.

It must also be noted that each subject was tested alone and individually, to ensure that the effects and reactions of their classmates would bear no influence on the final results or findings of the experiment.

The Bobo Doll Experiment proper began by placing one of the children from the test groups in a room with an adult. The subject sat in one corner of the room, with a few appealing toys to play with, such as potato prints and sticker activities.

The adult sat in the other corner of the room, with a few toys, as well as a Bobo doll and mallet. The child was not permitted to play or interact with these toys.

For the children in group two, after one minute of playing with the toys, the adult would begin to verbally and physically attack the doll for a period of 10 minutes.

For the third group tested, the adult would sit quietly and play peacefully with the toys for ten minutes.

The control group, of course, sat in the room for ten minutes with no adult present.

The next stage of the Bobo Doll Experiment was to take the subject into another room, which was filled with interesting toys. The child was not permitted to play with these toys, being told that they were reserved for other children to play with. This was intended to build up the levels of frustration within the subject.

The child was then taken into yet another room filled with interesting toys, some of an aggressive type, some non-aggressive; the room also contained the Bobo doll and the mallet. The subject was watched through a one-way mirror, and a number of types of behavior were assessed.

The first factor measured was physical aggression, consisting of hitting the doll with the mallet or punching, kicking or sitting on the doll.

Verbal aggression was also assessed, whether it was general abuse or an imitation of phrases used by the adult role-model.

The third measurement was the amount of times the mallet was used to display other forms of aggression than hitting the doll. The final behaviors studied were modes of aggression, shown by the subject, which were not direct imitations of the role-model's behavior.

The results for the Bobo Doll Experiment showed, as expected by prediction one, that children who were exposed to the aggressive model were more likely to show imitative aggressive behavior themselves.

Prediction four was proved correct in that boys were nearly three times more likely to replicate physically violent behavior than girls.

The measurements for verbally aggressive behavior again showed that children exposed to aggressive role models were more likely to imitate this behavior. The levels of verbal aggression expressed were about the same for boys and girls.

Subjects in the Bobo Doll Experiment exposed to the non-aggressive model, or no model at all, showed little imitative aggressive behavior. This finding partially proved prediction two, with children exposed to a passive role model showing less imitative aggression.

However, the results did not fully prove this prediction, as there was no discernible difference in the imitative aggression levels between groups one and three.

Male subjects exposed to non-aggressive role models were less likely to use the mallet to hit the Bobo doll. Strangely, male subjects placed with non-aggressive female models were more likely to use the mallet than the control group.

The findings of the Bobo Doll Experiment proved to be a little inconclusive with most of the predictions not being fully proved.

It is not certain that children learn socially, but it is likely that children observing an adult model utilizing violence are more likely to believe that this type of behavior is normal. They may, therefore, be more likely to use this type of action themselves when confronted by similar situations.

Bandura found that girls were much less likely to be physically violent, but were equally as prone to verbal aggression as boys. This is something often encountered in society, where bullying at school, by boys, is more often of a physical nature; intimidation amongst girls tends to be more verbal and social.

There were a few criticisms of the experiment; the Bobo doll springs back upright when it is hit and there is a strong possibility that the children saw it as a game rather than anything else.

There was a follow up experiment, in 1963, which used the same methodology but showed the subjects violence via video; this had a much less defined response than the initial experiment.

Another refinement of the Bobo Doll Experiment, in 1965, tried to establish the effects of rewarding or punishing bad and violent behavior. Children, who witnessed the model being punished for aggressive behavior, were much less likely to follow suit. Interestingly, there was no change in aggression when the model was rewarded for bad behavior.

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Martyn Shuttleworth (Mar 26, 2008). Bobo Doll Experiment. Retrieved Oct 01, 2024 from Explorable.com: https://explorable.com/bobo-doll-experiment

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