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This was a controversial study of the psychological effects of becoming a prisoner or prison guard conducted at Stanford University from August 14 to August 20 in 1971 by a team of researchers led by Zimbardo. Twenty-four male students out of 75 were selected to take on randomly assigned roles of prisoners and guards in a mock prison situated in the basement of the Stanford psychology building. The participants adapted to their roles well beyond Zimbardo's expectations, as the guards enforced authoritarian measures and ultimately subjected some of the prisoners to psychological torture, leading to dangerous and psychologically damaging situations. (en) |
