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Stanford Prison Experiment

Stanford Prison Experiment. An Experiment in Conformity. What is it?. The experiment was conducted in 1971 by a team of researchers led by Dr. Philip Zimbardo, a psychology professor at Stanford University

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Stanford Prison Experiment

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  1. Stanford Prison Experiment An Experiment in Conformity

  2. What is it? • The experiment was conducted in 1971 by a team of researchers led by Dr. Philip Zimbardo, a psychology professor at Stanford University • Twenty-four undergraduates were selected out of over 75 to play the roles of both guards and prisoners and live in a mock prison in the basement of the Stanford psychology building • Roles were assigned at random, and the entire experiment was filmed

  3. What is it? • The prison was put in the basement of Stanford’s psychology building • The participants chosen to play prisoners were arrested at their homes and charged with armed robbery. The local Palo Alto police department assisted Zimbardo with the arrests and conducted full booking procedures on the prisoners, which included fingerprinting and taking mug shots. Prisoners were identified by numbers, and not at all by their names • The guards were provided with weapons—wooden batons which could not be used to punish the prisoners, meant only to establish their status—and clothing that simulated that of a prison guard—khaki shirt and pants from a local military surplus store. They were also given mirrored sunglasses to prevent eye contact

  4. Results • After a relatively uneventful first day, a riot broke out on the second day. The guards volunteered to work extra hours and worked together to break the prisoner revolt, attacking the prisoners with fire extinguishers without supervision from the research staff. • Prisoners were humiliated in a variety of ways, but were never hit with the batons. • After 36 hours, one prisoner, 8612, “began to act crazy, to scream, to curse, to go into a rage that seemed out of control”. Ultimately, he was released.

  5. Conclusions • There was unity among the guards, but a complete lack of unity in the prisoners • Although some guards were not sadistic with the prisoners, they did not intervene to stop the behavior • An “evil place” will triumph over “good people” • It seemed the situation caused the participants' behavior, rather than anything inherent in their individual personalities.

  6. Results • Prisoner No. 416, a newly admitted stand-by prisoner, expressed concern over the treatment of the other prisoners. • The guards responded with more abuse. When he refused to eat his sausages, saying he was on a hunger strike, guards confined him in a closet and called it "solitary confinement.“ • The guards used this incident to turn the other prisoners against No. 416, saying the only way he would be released from solitary confinement was if they gave up their blankets and slept on their bare mattresses, which all but one refused to do.

  7. Results • Zimbardo aborted the experiment early when Christina Maslach, a graduate student, objected to the appalling conditions of the prison after she was introduced to the experiment to conduct interviews. • Zimbardo noted that of more than fifty outside persons who had seen the prison, Maslach was the only one who questioned its morality. • After only six days of a planned two weeks' duration, the Stanford Prison experiment was shut down.

  8. Conclusions • The experiment was criticized for being unethical and unscientific • New standards of ethics would make an experiment like this one impossible to perform in modern times, based on the Canadian Code of Conduct for Research involving Humans

  9. Now • Create a Venn diagram in which five commonalities, and five points of uniqueness to the Stanley Milgram and Stanford Prison experiments • Diagrams will be made in groups of four and presented to the class as a whole

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