FIGURE 12.3 Milgram’s follow-up obedience experiment In a repeat of the earlier experiment, 65 percent of the adult male “teachers” fully obeyed the experimenter’s commands to continue. They did so despite the “learner’s” earlier mention of a heart condition and despite hearing cries of protest after they delivered what they thought were 150 volts, and agonized protests after 330 volts. (Data from Milgram, 1974.)

Stanley Milgram, from the film Obedience. Rights held by Alexandra Milgram.