Known as the Stanford Prison Experiment, the study went on to become one of the best-known in psychology's history. Zimbardo, a former classmate of Stanley Milgram (who is best-known for his famous obedience experiment), was interested in expanding on Milgram's research. "Suppose you had only kids who were normally healthy, psychologically and physically, and they knew they would be going into a prison-like environment and that some of their civil rights would be sacrificed. Would those good people, put in that bad, evil place—would their goodness triumph?" said Zimbardo in one interview. The researchers set up a mock prison in the basement of Stanford University's psychology building. The participants were chosen from a group of 70 volunteers because they had no criminal background, lacked psychological issues, and had no significant medical conditions. The volunteers agreed to participate during a one to two-week period in exchange for $15 a day.…