Obedience

In the baseline "remote" condition — where the learner was in a separate room and could only be heard — 65% of participants (26 out of 40) administered the full 450-volt shock labelled "XXX." Every single participant continued to at least 300 volts, at which point the learner made loud demands to be released.

Milgram had surveyed psychiatrists before the study, who predicted fewer than 1–3% would go to maximum voltage. The actual result was one of the most startling findings in the history of social psychology.

The most powerful variable was peer rebellion: when two confederate "teachers" refused to continue at 150 and 210 volts, obedience in the real participant dropped from 65% to just 10%. Seeing others defy authority appears to liberate individuals from the agentic state.

Victim proximity was also highly significant: when participants had to physically press the learner's hand onto a shock plate, obedience fell to about 30%. Receiving instructions by telephone (remote authority) reduced obedience to around 20%. In contrast, moving the study from Yale to a less prestigious commercial building reduced obedience only modestly (to ~47%), suggesting institutional prestige is less important than the immediacy of authority and victim.

Milgram proposed that individuals normally operate in an "autonomous state," acting on their own values and accepting personal responsibility. When entering a hierarchical system with a legitimate authority — such as an institutional setting with an expert giving clear instructions — they shift into an "agentic state": they perceive themselves as agents executing the will of the authority, and responsibility for outcomes shifts upward to the authority figure.

This helps explain why participants continued to administer shocks while visibly distressed: they were experiencing what Milgram called "strain," but had cognitively transferred responsibility to the experimenter. The incremental nature of the procedure (shocks increased in small steps from 15 to 450 volts) also made each step feel like a small departure from the last, rather than a single large decision.

Milgram was directly motivated by the 1961 Eichmann trial, in which a senior Nazi administrator who coordinated Holocaust logistics claimed he was "just following orders." Philosopher Hannah Arendt's reporting on the trial — coining the phrase "the banality of evil" — argued that ordinary bureaucratic compliance, not sadistic ideology, enabled mass atrocity.

Milgram's findings support this analysis: situational factors, not dispositional evil, are sufficient to induce extreme obedience. However, historians of the Holocaust have debated Milgram's relevance, arguing that ideological commitment and active participation played larger roles than simple obedience. The study is best understood as showing that situational factors can be sufficient to produce destructive obedience — not that they are always the primary cause.