•To test the dispositional hypothesis
•Physical & mental health
•Any involvement in crime
•Prior experiences & attitudinal tendencies in respect to psychopathology
Dispositional: Zimbardo overemphasized situation, maybe they reacted because of stereotypes learned in TV and books? Some people did not change their behavior
One of the most dramatic evidence of the impact of this situation upon the participants was when five prisoners had to be released early due to extreme emotional depression, crying, rage and acute anxiety.