The Stanford Prison Experiment, which took place in 1971, remains one of
the most iconic 20th century studies of human nature. In it, a group of
Stanford students were split into two groups — half of them guards,
half prisoners — and positioned in a section of the university outfitted
as a prison, where their interactions were monitored
using closed-circuit cameras by a group of Stanford researchers led by
psychology professor Philip Zimbardo.
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