Stanford psychologist behind the controversial “Stanford Prison Experiment” dies at 91

Philip G. Zimbardo, the psychologist known for the controversial “Stanford Prison Experiment,” has passed away at the age of 91. The experiment, conducted in 1971, aimed to study the psychological effects of imprisonment but quickly spiraled out of control as student guards became abusive and prisoners became distressed. Zimbardo’s role in the study was criticized, and it was eventually ended after six days due to the extreme conditions. The experiment is now used to study the psychology of evil and the ethics of research with human subjects. Zimbardo leaves behind his wife, three children, and four grandchildren.