The Milgram Obedience Experiment: Authority, Compliance, and Ethics

How Far Would an Ordinary Person Go?

In 1961, the year Adolf Eichmann stood trial in Jerusalem for orchestrating the deportation of millions of Jewish people to Nazi death camps, Yale University psychologist Stanley Milgram began a series of experiments that would become the most cited—and most debated—studies in the history of social psychology. Milgram wanted to know whether ordinary Americans, under the direction of an authority figure, would administer what they believed were dangerous electric shocks to another person. He expected the compliance rate to be low. He was wrong by an order of magnitude.

In Milgram's baseline experiment, 65% of participants administered what they believed was the maximum shock level of 450 volts—labeled "Danger: Severe Shock XXX" on the shock generator—to a person they believed to be in significant distress, simply because an experimenter in a gray coat told them to continue. The result was not a finding about sadism or cruelty. It was a finding about the power of situational authority to override individual moral judgment in ordinary people.

Experimental Design

The setup was elaborate and deceptive by design.

Participants were recruited through newspaper ads offering $4.50 for participation in a study of "memory and learning." At the Yale laboratory, each participant was paired with a confederate (an actor working with Milgram) and told they would participate in a study where one person would be the "teacher" and one the "learner." The drawing was rigged so the participant was always the teacher. The confederate-learner was strapped into a chair in an adjacent room, visibly, with electrodes attached, while the participant sat before a shock generator with 30 switches labeled from 15 volts ("Slight Shock") to 450 volts ("XXX").

The teacher read word pairs to the learner and administered a shock for each incorrect answer, incrementing the voltage by 15 volts with each error. The learner's responses were scripted: at 75 volts, grunts of discomfort; at 150 volts, a demand to be released; at 180 volts, cries that the pain was unbearable; at 300 volts, refusal to answer; at 330 volts, ominous silence. When participants hesitated or refused, the experimenter delivered a scripted series of prods: "Please continue," "The experiment requires that you continue," "It is absolutely essential that you continue," "You have no other choice, you must go on."

Results Across Conditions

Milgram conducted over 20 variations of the basic procedure between 1961 and 1963. The data showed that obedience decreased as physical proximity to the victim increased, as authority figures became more remote, and—most dramatically—as peer confederates modeled disobedience. When two confederate teachers rebelled and refused to continue, only 10% of participants went to maximum voltage. This finding had profound implications: social support for dissent dramatically reduced compliance with authority.

Psychological Mechanisms: The Agentic State

Milgram offered a theoretical account in his 1974 book Obedience to Authority. He proposed that humans have evolved two modes of social functioning:

• Autonomous state: Acting according to personal values and conscience, with a sense of individual responsibility for one's actions.
• Agentic state: Viewing oneself as an agent executing the wishes of a higher authority—an "agentic shift" in which personal moral responsibility is experienced as transferred to the authority figure rather than resting with the actor.

In the agentic state, Milgram argued, individuals do not abandon morality—they redefine their moral obligation as obedience to the hierarchy rather than as protecting others from harm. Participants in the experiments showed genuine distress (sweating, trembling, nervous laughter) while continuing to obey—evidence that moral inhibition was present but overridden by the situational authority structure, not absent. The agentic shift hypothesis remains influential, though critics have argued it is descriptive rather than mechanistically explanatory.

Ethical Controversy and Legacy

The experiments violated norms that would be established precisely in response to them.

Milgram deceived participants about the nature of the study, exposed them to significant psychological stress (many showed signs of extreme anxiety during the procedure), and did not provide adequate dehousing immediately following the experience. Post-study interviews conducted by Milgram showed that 84% of participants reported feeling "glad" to have participated, and 1% reported negative feelings—but these self-reports were collected in a context where social desirability pressures were strong. The American Psychological Association temporarily suspended Milgram's membership while reviewing his procedures.

The Belmont Report (1979) and subsequent research ethics regulations—IRB requirements, informed consent standards, deception debriefing protocols—were shaped substantially by the Milgram experiments and the roughly contemporary Tuskegee syphilis study. Milgram's work became a standard reference point in bioethics education and a template for what responsible human subjects research must avoid.

Replication and Reassessment

• Jerry Burger at Santa Clara University conducted a partial replication in 2009, stopping procedures at 150 volts (to avoid the most distressing portion). He found obedience rates of approximately 70%—comparable to Milgram's baseline, suggesting the findings are not merely a product of 1960s social norms.
• A 2017 Polish replication by Dariusz Doliński found similar results in a contemporary European context.
• Gina Perry's historical investigation (Behind the Shock Machine, 2012) raised questions about procedural inconsistencies in Milgram's studies and suggested that the actual behaviors observed were more complex and varied than the published data implied—with some participants exhibiting outright defiance that Milgram coded as compliance, and some pressured more aggressively than the scripted prods indicated.