===
Milgram (1963)===
Stanley Milgram's experiment is a classic study of blind
obedience; however, it also explicitly illustrates characteristics of situations in which deindividuation is likely to occur. Participants were taken into a room and sat in front of a board of fake controls. They were then told by the experimenter that they were completing a task on learning and that they were to read a list of word pairs to the "learner" and then test the learner on accuracy. The participant then read a word and four possible matches. If the confederate got the match wrong, they were to administer a shock (which was not real, unbeknownst to the participant) from the fake control panel they were sitting in front of. After each wrong answer, the intensity of the shock increased. The participant was instructed by the experimenter to continue to administer the shocks, stating that it was their duty in the
experiment. As the voltage increased, the confederate began to complain of pain, yelled out discomfort, and eventually screamed the pain was too much and sometimes they even began to bang on the wall. At the greatest amount of voltage administered, the confederate stopped speaking at all. The results of the study showed that 65 percent of experiment participants administered the experiment's final, and most severe, 450-volt shock. Only 1 participant refused to administer shocks past the 300-volt level. The participants, covered by a veil of anonymity, were able to be more aggressive in this situation than they possibly would have in a normal setting. Additionally, this is a classic example of diffusion of responsibility in that participants looked to an authority figure (the experimenter) instead of being self-aware of the pain they were causing or engaging in self-evaluation which may have caused them to adhere to
societal norms. ===
Philip Zimbardo (1969)=== This study prompted Zimbardo to write his initial theory and model of deindividuation based on the results of his research. In one study, participants in the experimental condition were made to be anonymous by being issued large coats and hoods which largely concealed their identity. These
New York University women were dressed up like
Ku Klux Klan members in groups of four. In contrast, the participants in the control condition wore normal clothes and name tags. Each participant was brought into a room and given the task of "shocking" a confederate in another room at different levels of severity ranging from mild to dangerous (similar to
Stanley Milgram's study in 1963). Zimbardo noted that participants who were in the anonymous condition "shocked" the confederates longer, which would have caused more pain in a real situation, than those in the non-anonymous control group. However, a second study using soldiers was done which showed the exact opposite results. When the soldiers were identifiable, they shocked longer than the unidentifiable soldiers. Zimbardo proposed that as a result of anonymity, the soldiers may have felt isolated from their fellow soldiers. These studies motivated Zimbardo to examine this deindividuation and
aggression in a prison setting, which is discussed in the next study listed. ===
Philip Zimbardo (1971)=== Now a more widely recognized study since the publication of his book,
The Lucifer Effect, the
Stanford Prison Experiment is infamous for its blatant display of
aggression in deindividuated situations. Zimbardo created a mock prison environment in the basement of
Stanford University's psychology building in which he
randomly assigned 24 men to undertake the role of either guard or prisoner. These men were specifically chosen because they had no abnormal personality traits (e.g.,
narcissistic,
authoritarian,
antisocial). The experiment, originally planned to span over two weeks, ended after only six days because of the sadistic treatment of the prisoners by the guards. Zimbardo attributed this behavior to deindividuation due to immersion within the group and creation of a strong
group dynamic. Several elements added to the deindividuation of both guards and prisoners. Prisoners were made to dress alike, wearing stocking caps and hospital dressing gowns, and also were identified only by a number assigned to them rather than by their name. Guards were also given uniforms and reflective glasses which hid their faces. The dress of guards and prisoners led to a type of
anonymity on both sides because the individual identifying characteristics of the men were taken out of the equation. Additionally, the guards had the added element of
diffusion of responsibility which gave them the opportunity to remove personal responsibility and place it on a higher power. Several guards commented that they all believed that someone else would have stopped them if they were truly crossing the line, so they continued with their behavior. Critics have questioned the validity of the experiment.
Diener, Fraser, Beaman, and Kelem (1976) In this classic study, Diener et al. had a woman place a bowl of candy in her living room for trick-or-treaters. An observer was placed out of sight from the children in order to record the behaviors of the trick-or-treaters. In one condition, the woman asked the children identification questions such as where they lived, who their parents were, what their name was, etc. In the other condition, children were completely
anonymous. The observer also recorded whether children came individually or in a group. In each condition, the woman invited the children in, claimed she had something in the kitchen she had to tend to so she had to leave the room, and then instructed each child to take only one piece of candy. The anonymous group condition far outnumbered the other conditions in terms of how many times they took more than one piece of candy. In 60% of cases, the anonymous group of children took more than one piece, sometimes even the entire bowl of candy. The anonymous individual and the identified group condition tied for second, taking more than one piece of candy 20% of the time. The condition which broke the rule the fewest times was the identified individual condition, which took more than one piece of candy only in 10% of cases.
Dodd, D. (1985) Dodd's experiment evaluates the association between deindividuation and anonymity. Dodd measured his subjects by asking them what they would do (within the realm of reality) if their identity were kept anonymous and they would receive no repercussions. The responses were grouped into four categories:
prosocial,
antisocial, nonnormative, and neutral. Results of his study yielded that 36% of the responses were antisocial, 19% nonnormative, 36% neutral and only 9% prosocial. The most frequent responses recorded were
criminal acts. This study on deindividuation exhibits the importance of situational factors, in this case anonymity, when reporting antisocial behavior. Furthermore, this study demonstrates that personal traits and characteristics are not much of predictor when predicting the behavior. Overall, this study is supportive of the concept of deindividuation as Dodd found that behavior changes from what would be normal of a certain individual, to a behavior that is not representative of normal behavioral decisions.
Reicher, S., Levine, R. M., Gordijn, E. (1998) Following the social models of identity proposed by deindividuation, the study conducted by Reicher, Levine and Gordijn expresses the strategic effects of visibility on the
in-group. The experimenters suggest that increasing visibility amongst the in-group members subsequently increases their ability to support each other against the
outgroup—this also leads to an increase in the traits of the in-group that would normally be sanctioned by the out-group. The study was based on the debate over whether fox hunting should or should not be banned. The experimenters were mainly concerned with the participants that defined themselves as 'anti-hunting'. The participants involved thirty male and female students of the mean age of 17 years in the first year of their A-level psychology course located in a rural town in South West England. The study involved two separate sessions where the participants completed a pre-test and were assigned to the pro- or anti- hunting groups. A spokesperson representing each view was brought in to discuss their opinions individually with each participant. The pro-hunting group was taken to another room and did not take further part in the study. For the in-group low-visibility condition, part of the anti-hunting participants were taken to individual booths where they were not visible to others in the experiment. The remaining anti-hunting participants who were categorized under the in-group high visibility condition, were seated in a circle where each was visible to all throughout the experiment. At this point both groups were shown a video. After watching the video the participants were handed a questionnaire. They were asked to write their names on the front so that the out-group spokesperson would be able to identify the authors of the questionnaire before discussing the comments individually. To the experimenters' surprise the experiment demonstrated the inverse of their hypothesis. The study showed that more participants were more likely to express normative behaviors that are punishable by powerful out-group when they are visible to fellow members of the same in-group. Experimenters also found that in-group participants actually expressed opposition to the roles imposed by the experimenters themselves. Instead of just uniting against hunt, some of the in-group participants resented being told that their group supported certain views—some regarded themselves as moderate pro- or anti- hunters instead. In this case, the experimenters themselves triggered a response from the in-group, which was later analyzed through follow up experiments.
Lee, E.J. (2007) This study conducted by Lee investigates the effects of deindividuation on
group polarization. Group polarization refers to the finding that following group discussion, individuals tend to endorse a more extreme position in the direction already favored by the group. In Lee's study subjects were either assigned to a deindividuation or individuation condition. Next, each subject answered questions and provided an argument about a given dilemma. They were then shown their partners' decisions and the subjects were asked to indicate how convincing and valid the overall arguments were. In analyzing her results, Lee came to several conclusions: •
Group identification was positively correlated with
group polarization. • Lee confirmed her
hypothesis that the subjects would show stronger group identification and greater opinion polarization when deindividuated than when individuated. • Lee found that the more the participants identified with their partners, the more positive their evaluations of the partners' arguments were, manifesting
in-group favoritism. • Lee's findings suggest that both higher group identification and deindividuated subjects reported a significantly higher level of public-self-awareness. Overall, this study provides solid research for which the previous findings regarding deindividuation can be solidified. The finding that deindividuation was associated with stronger group polarization and identification corresponds with the basis of deindividuation: individuals that are more polarized and identified with a group will be more apt to act out of character and display anti-normative behavior. == In online environments ==