Zimbardo (1969) argued that behaviour is usually constrained by social norms – meaning aggressive behaviour is usually discouraged
However, when we become part of a crowd we lose restraint and may behave in emotional, impulsive and irrational ways
We become de-individuated and lose individual self-identity and responsibility for our own behaviour
Responsibility becomes shared throughout the crowd, so we experience less personal guilt at harmful aggression directed at others
Anonymity is a major condition of de-individuation
Several conditions of de-individuation promote aggression. E.g. Darkness, uniforms, masks, etc.
However, the most important condition of de-individuation is ANONYMITY
We have less fear of retribution because we are unidentifiable in a crowds – the bigger the crowd, the greater the anonymity
Anonymity provides fewer opportunities for others to judge us negatively
Anonymity reduces private self-awareness
Prentice-Dunn and Rogers (1982) argue that anonymity reduces private self-awareness because our attention is focused outwardly to the events around us
This means we think less about our own beliefs and feelings – we are less self-critical and evaluative
Anonymity reduces public self-awareness
Anonymity also reduces public self-awareness because we realise we are anonymous and our behaviour is less likely to be judged by others
We no longer care how others see us – we become less accountable for our aggressive and destructive actions
Dodd (1985) – Student De-individuation Study
Procedure
Dodd asked psychology students: ‘If you could do anything humanly possible with complete assurance that you would not be detected or held responsible, what would you do?’
Students knew their answers were anonymous
Three independent raters, who did not know the hypothesis, decided which categories of prosocial or antisocial behaviour the responses belonged to
Dodd procedure - findings :
36% of responses involved a form of antisocial behaviour and 26% actual criminal acts (most common was ‘rob a bank’.
Only 9% of responses were prosocial behaviours (e.g. helping people)
In terms of how people imagine they would behave, this study demonstrates a link between anonymity, de-individuation and aggressive behaviour
AO3:
strength of de-individuation as an explanation of aggression is that there is supportive research evidence
Douglas and McGarty (2001) looked at aggressive online behaviour in chatrooms and uses of instant messaging
They found a strong correlation between anonymity and posting hostile messages. The most aggressive messages were sent by those who hid their identities
This suggests a link between anonymity, de-individuation and aggressive behaviour in a context that has even greater relevance today
AO3:
limitation of de-individuation as an explanation of aggression is that there is contradictory research evidence
Gergen et al put strangers in a darkened room and told them to do what they wanted – they soon started kissing and touching each other
This study was repeated and this time participants were told they would be face-to-face with each other afterwards – the kissing and touching reduced
anonymity fosters de-individuation, but aggressive behavior is not a result, suggesting that de-individuation doesn't always result in aggressive behavior.
AO3:
limitation of de-individuation as an explanation of aggression is that de-individuation does not always lead to aggression
Johnson and Downing's study showed that female participants, dressed as nurses or wearing their own clothes, gave more intense shocks and nurses gave fewer and less intense shocks
nurses were more caring, which is in line with the prosocial role associated with a nurse’s uniform
indicating that prosocial behavior is just as likely to occur as deindividuation, and aggression is not always the outcome.
AO3:
strength of de-individuation as an explanation of aggression is that it has useful real-life applications
De-individuation theory can help us to understand aggressive behaviour in online services such as Xbox Live
These services have features promoting de-individuation, for example a reduction of personal identify through the use of gamer tags/usernames, rather than real names
This real-life application confirms the relevance of de-individuation concepts to aggression and can be used to develop online features that reduce anonymity in order to reduce online aggression
AO3:
limitation of de-individuation as an explanation of aggression is that other explanations may account better for aggression
According to Spears and Lea's social identity theory, de-individuation involves shifting attention from personal identity to group identity, which can result in antisocial or prosocial behavior depending on group norms.
This could lead to antisocial or prosocial behaviour, depending on the group norms. Not always antisocial
Therefore, anonymity and reduced self-awareness linked to de-individuation do not always inevitably lead to aggression