Zimbardo - Procedure

• Where did Zimbardo set up a mock prison?

  In the basement of Stanford University
• How many volunteers were there?

  21 students
• What were the men tested as?

  Emotionally stable
• Who were the volunteers?

  Students
• How was the sample selected?

  Volunteer sampling
• What were the students randomly assigned as?

  Prisoner or guard
• What were "prisoners" and "guards" encouraged to do?

  Conform to social roles
• How were "prisoners" and "guards" encouraged to conform to social roles?

  Uniforms and instructions about behaviour
• What uniform were prisoners given?

  Loose smock and a cap
• How were prisoners identified?

  Number - names not used
• What did the uniform reflect?

  Status of their role
• What uniform were guards given?

  Guard uniform, wooden club, handcuffs and mirror shades
• What did the uniforms mean?

  Loss of personal identity (de-individuation)
• What did a loss of personal identify mean for students?

  More likely to conform to social roles
• What instructions were guards given about their behaviour?

  Reminded they had complete power over prisoners
• What instructions were prisoners given about their behaviour?

  Several procedures - apply for 'parole'