http://en.wikipedia.org/wiki/Milgram_experimentBefore conducting the experiment, Milgram polled fourteen Yale University senior-year psychology majors as to what they thought would be the results. All of the poll respondents believed that only a few (average 1.2%) would be prepared to inflict the maximum voltage. Milgram also informally polled his colleagues and found that they, too, believed very few subjects would progress beyond a very strong shock.<1>
In Milgram's first set of experiments, 65 percent (26 of 40)<1> of experiment participants administered the experiment's final massive 450-volt shock, though many were very uncomfortable doing so; at some point, every participant paused and questioned the experiment, some said they would refund the money they were paid for participating in the experiment. Only one participant steadfastly refused to administer shocks below the 300-volt level.<1>
Milgram summarized the experiment in his 1974 article, "The Perils of Obedience", writing:
The legal and philosophic aspects of obedience are of enormous importance, 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'
strongest moral imperatives against hurting others, and, with the subjects' 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.
Ordinary people, simply doing their jobs, and without any particular hostility on their part, can become agents in a terrible destructive process. Moreover, even when the destructive effects of their work become patently clear, and they are asked to carry out actions incompatible with fundamental standards of morality, relatively few people have the resources needed to resist authority.<3>
The original Simulated Shock Generator and Event Recorder, or shock box, is located in the Archives of the History of American Psychology.
Later, Prof. Milgram and other psychologists performed variations of the experiment throughout the world, with similar results<4> although unlike the Yale experiment, resistance to the experimenter was reported anecdotally elsewhere.<5> Milgram later investigated the effect of the experiment's locale on obedience levels by holding an experiment in an unregistered, backstreet office in a bustling city, as opposed to at Yale, a respectable university. The level of obedience, "although somewhat reduced, was not significantly lower." What made more of a difference was the proximity of the "learner" and the experimenter. There were also variations tested involving groups.
Dr. Thomas Blass of the University of Maryland, Baltimore County performed a meta-analysis on the results of repeated performances of the experiment. He found that the percentage of participants who are prepared to inflict fatal voltages remains remarkably constant, 61–66 percent, regardless of time or place.<6><7>[ve