Rapid Assimilation: Both groups conformed to their roles with surprising speed. Within two days, prisoners rebelled against their harsh treatment, and guards responded with increasing psychological aggression and dehumanizing tactics.
Pathological Prisoner Syndrome: Prisoners became subdued, depressed, and anxious. One prisoner had to be released after 36 hours due to fits of crying and rage; others showed signs of 'learned helplessness', accepting the guards' arbitrary rules as absolute.
The Power of the Situation: The experiment was terminated after only 6 days because the guards' behavior became a threat to the prisoners' psychological and physical health. This supported the situational hypothesis—that the environment dictates behavior more than individual personality.
| Feature | Situational Explanation | Dispositional Explanation |
|---|---|---|
| Primary Cause | External environment and social roles. | Internal personality traits and character. |
| Zimbardo's View | Anyone can become 'evil' given the right role. | Only 'bad' people perform 'bad' actions. |
| Evidence | Randomly assigned 'stable' students became abusive. | If true, guards would have remained kind regardless of role. |
Situational Factors: These include the physical setting, the perceived authority of the role, and the social pressure from peers within the same role.
Dispositional Factors: These refer to the 'inner' person. Zimbardo argued that the prison environment was so powerful it 'swamped' individual differences in personality.
Ethical Breaches: Participants were not fully protected from psychological harm. Furthermore, Zimbardo's dual role as lead researcher and 'Prison Superintendent' created a conflict of interest, as he became too involved in the 'drama' to objectively protect his participants.
Demand Characteristics: Critics argue that participants were simply 'play-acting' based on how they thought guards and prisoners were supposed to behave (stereotypes), rather than genuinely conforming to the role.
Lack of Ecological Validity: While the 'arrests' were realistic, a mock prison in a university basement cannot fully replicate the complexities and long-term pressures of a real correctional facility.
Distinguish the 'Why': When asked why the participants conformed, focus on deindividuation and the power of the situation. Avoid saying they were 'bad people'; the whole point of the study is that they were 'normal' before the roles were assigned.
Evaluate the Ethics: Always mention the right to withdraw. In the study, when a prisoner asked to leave, Zimbardo responded as a superintendent worried about his prison, rather than a researcher allowing a participant to exercise their rights.
Link to Identification: Remember that this is the middle level of conformity. The participants didn't necessarily stay 'guards' or 'prisoners' in their real lives after the study ended, which proves the conformity was tied to the social role.
