Philip G. Zimbardo, the psychologist behind the controversial "Stanford Prison Experiment" that was intended to examine the psychological experiences of imprisonment, has died. He was 91.Related video ...

In 1971, Stanford University psychologist Philip Zimbardo conducted a notorious experiment in which he randomly divided college students into two groups, guards and prisoners, and set them loose in a ...

You don’t need to have a background in psychology to know about Zimbardo’s prison experiment. Depicted in movies, television, and of course all introductory psych textbooks, the true story is rarely ...