-zimbardo set up a mock prison in the basement of the psychology department of Stanford university
-referred to as the Stanford prison experiment (SPE)
student volunteer, 21 who were 'emotionally stable' after extensive emotional testing
-randomly assigned to prisoner or guard
-the 'prisoners' were 'arrested' in their homes by local police and taken to the 'prison'
-the guards enforced rules, were given uniforms and were told they have complete control over the prisoners