The Milgram experiment was a famous scientific experiment of social psychology. The experiment was first described by Stanley Milgram, a psychologist at Yale University in an article titled Behavioral Study of Obedience published in the Journal of Abnormal and Social Psychology in 1963, and later summarized in his 1974 book Obedience to Authority: An Experimental View. It was intended to measure the willingness of a participant to obey an authority who instructs the participant to do something that may conflict with the participant's personal conscience.
The experiments began in July 1961, a year after the trial of Adolf Eichmann in Jerusalem. Milgram devised the experiment to answer the question "Could it be that Eichmann and his million accomplices in the Holocaust were just following orders? Could we call them all accomplices?" (Milgram, 1974)
Milgram summed up in the article "The Perils of Obedience" (Milgram 1974), writing:
"The legal and philosophic aspects of obedience are of enormous import, but they say very little about how most people behave in concrete situations. I set up a simple experiment at Yale University to test how much pain an ordinary citizen would inflict on another person simply because he was ordered to by an experimental scientist. Stark authority was pitted against the subjects' [participants'] strongest moral imperatives against hurting others, and, with the subjects' [participants'] ears ringing with the screams of the victims, authority won more often than not. The extreme willingness of adults to go to almost any lengths on the command of an authority constitutes the chief finding of the study and the fact most urgently demanding explanation."
Contents [hide]
1 Method of the experiment
2 Results
3 Reactions
4 Variations
5 In popular culture
6 See also
7 External links and references
7.1 Film
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Method of the experiment
The method of Milgram's original experiment was as follows:
Subjects were recruited by newspaper ad and direct mail solicitation to participate in a "study of memory" at Yale. (The experiments themselves took place in two rooms in the basement of Linsly-Chittenden Hall, on the university's Old Campus.) The experiment was advertised as taking one hour, for which those responding would be paid $4.50. Participants were men between the ages of 20 and 50, coming from all educational backgrounds from an elementary school dropout to participants with doctoral degrees.
The participant and a confederate (an actor pretending to be another participant) are told by the experimenter that they will be participating in an experiment to test the effects of punishment on learning behavior.
A slip of paper is given to the participant, another to the confederate. The participant is led to believe that one of the slips says "learner" and one says "teacher" and that he is randomly given one of the slips. The actor claims to have been assigned as "learner," so the participant is led to believe that the roles have been chosen randomly. In actuality both slips say "teacher," while the actor just misreports what is on his slip; no element of randomness is involved.
The participant or "teacher" is then given a sample 45-volt electric shock from the electro-shock generator, as a "sample" of the shock the "learner" will supposedly receive during the experiment. The "teacher" is then given a list of word pairs which he is to teach the learner. The teacher begins by reading off a list of word pairs to the learner. After reading through the word pairs, the teacher will then only read the first word of each pair, and read 4 possible answers. The learner will indicate which second word he believes to be correct by pressing a button (1 through 4) corresponding to the teacher's choices. If incorrect, the learner will receive a shock, increasing by 15 volts with each wrong answer. If correct, the next word pair is read.
The teacher believes that he is actually giving shocks to the learner participant. In reality, there are no shocks being given to the learner. Once the learner is separated, he sets up a tape recorder, integrated with the electro-shock generator, which plays pre-recorded tracks at certain shock levels. After a certain number of level increases, the actor starts to bang on the wall that separates him from the teacher (subject). After banging on the wall and complaining of his heart condition (which he talked about at the beginning of the experiment), the learner gives no further response to the questions and no further complaints.
It is at this point that many people begin to indicate their desire to stop the experiment and check on the subject. Many test subjects pause at 135 volts and begin to question the purpose of the experiment. Some continue after being assured that they will not be held responsible. Some participants begin to laugh nervously once they hear the screams of pain coming from the learner.
If, at any time, the subject indicates his desire to halt the experiment he is given a succession of verbal prods by the experimenter, in this order:
Please continue.
The experiment requires you to continue, please go on.
It is essential that you continue.
You have no choice, you must continue.
If the subject still wishes to stop after all four successive verbal prods, the experiment is halted. Otherwise, it is halted after the subject has given the maximal 450-volt shock three times in succession.
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Results
Milgram created a documentary film showing the experiment and its results, titled "Obedience", legitimate copies of which are hard to find today. He also produced a series of five other films on social psychology with Harry From, some of which touched on his experiments [1]. They may all be obtained from Penn State Media Services.
Before the experiment was conducted Milgram polled fellow psychologists as to what the results would be. They unanimously believed that only a few sadists would be prepared to give the maximum voltage.
In Milgram's first set of experiments, 65 percent (27 out of 40) of experimental participants administered the experiment's final 450-volt shock, though many were quite uncomfortable in doing so; everyone paused at some point and questioned the experiment, some even saying they would return the cheque for the money they were paid. No participant steadfastly refused to give further shocks before the 300-volt level. Variants of the experiment were later performed by Milgram himself and other psychologists around the world with similar results. Apart from confirming the original results the variations have tested variables in the experimental setup.
Thomas Blass of the University of Maryland (who is also the author of a biography of Milgram, called The Man who shocked the World) performed a meta-analysis on the results of repeated performances of the experiment (done at various times since, in the US and elsewhere). He found that the percentage of participants who are prepared to inflict fatal voltages remains remarkably constant, between 61% and 66%, regardless of time or location (a popular account of Blass' results was published in Psychology Today, March/April 2002). The full results were published in the Journal of Applied Social Psychology. [Blass, 1999]