PsychOS

Lewin's Leadership Styles Study

Lewin put boys' clubs under three different leadership styles and watched what happened to their behavior when the adult left the room. Study details: Kurt Lewin, 1939.

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You're an 11-year-old boy in Iowa in 1938, and you've just joined an after-school club that meets to build masks and make model airplanes. You don't know it yet, but the adult running your group has been trained to lead in one of three specific ways, and in a few weeks you'll be moved to a different group with a different style of adult in charge. Researchers are sitting quietly in the room, writing down everything you do.

THE HYPOTHESIS

Kurt Lewin, along with Ronald Lippitt and Ralph White, wanted to test something that political and social events of the era made urgent: does the style of leadership itself change how a group behaves, independent of who the individual leader is? Their hypothesis was that authoritarian, democratic, and laissez-faire leadership would each produce a distinct and measurable pattern of behavior in the group, regardless of which specific adult was delivering that style.

THE METHODOLOGY

The researchers formed clubs of ten-year-old boys who met after school to work on craft projects. Adult leaders were trained to run their groups in one of three ways. An authoritarian leader dictated all decisions, assigned tasks without explanation, and gave personal praise or criticism of each boy's work. A democratic leader discussed decisions with the group, let the boys choose their own work partners, and offered feedback framed around the project rather than the individual. A laissez-faire leader gave the group full freedom, offered materials and information only if asked, and largely stayed out of the activity entirely.

To isolate the style itself rather than the particular adult, the same leaders rotated through different groups over the following weeks, running each style with different boys at different points. Researchers observed from behind a screen and recorded behavior at regular intervals, noting aggression, work output, and what happened the moment a leader briefly left the room.

STEP-BY-STEP EXECUTION

Under the authoritarian leader, the boys produced a high quantity of work while the leader was present, but showed clear hostility: scapegoating of individual members, higher reported aggression, and a tense, discontented mood even during periods of apparent productivity. The moment the leader left the room, work largely stopped.

Under the democratic leader, work quality was reported as higher, the group showed more original and creative contributions, and the atmosphere was friendlier, with less scapegoating. Critically, when the leader left the room, the boys kept working at a similar pace to when he was present.

Under the laissez-faire leader, the group produced the least work and the lowest quality output of the three conditions, and reported the most confusion and frustration about what they were supposed to be doing, despite enjoying the lack of structure in some respects.

A notable twist emerged when some boys who had experienced the authoritarian style were later moved into a laissez-faire or democratic group. Several showed a sharp release of pent-up aggression once the controlling leader was no longer present, which the researchers interpreted as evidence that the hostility had been suppressed rather than resolved under authoritarian conditions, not absent.

The original study used a very small number of groups and boys, all from a similar age range and background in a single US town in the 1930s, and it has not been replicated at scale with the same design since. Later leadership research, including work on transformational and situational leadership models, has built on these categories without fully re-testing Lewin's original setup.

PSYCHOLOGICAL REVELATION

The finding that outlasted the experiment itself is the behavior-when-unsupervised effect. Compliance driven by control tends to evaporate the moment the controlling presence is removed, while behavior built on shared understanding tends to persist without supervision. That distinction maps closely onto what operant conditioning predicts about externally imposed consequences versus internalized motivation, and it's part of why what actually makes a good leader emphasizes ownership over control.

The suppressed-aggression finding also connects to a much later body of work on emotional regulation , where outward compliance and internal state can diverge sharply, and the gap tends to surface eventually rather than simply disappear.

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FAQ

What were Lewin's three leadership styles?

Lewin, Lippitt, and White identified authoritarian, democratic, and laissez-faire leadership styles in their 1939 study. Each produced a distinct pattern of group behavior, productivity, and mood among the boys studied.

Which leadership style was most effective in the study?

The democratic style produced the best combination of output quality, group morale, and sustained work when the leader left the room. The authoritarian style produced high output only while directly supervised, and the laissez-faire style produced the weakest results overall.

Is Lewin's leadership styles study still considered valid today?

The core distinction between these three styles remains widely taught and referenced in leadership research. The original study itself was small, conducted with a narrow sample of boys in one town, and has not been replicated at the same scale, so it should be treated as a foundational and influential study rather than a definitive modern finding.

What happened when the authoritarian leader left the room?

Productivity dropped sharply, and some boys who had been under authoritarian leadership displayed a release of aggression once the controlling adult was absent. Researchers interpreted this as suppressed hostility surfacing rather than disappearing under strict control.

How does this study apply to leadership today?

It's often cited as early evidence that leadership style shapes group behavior independent of the individual leader, and that control-based compliance tends not to survive once supervision ends. Many modern leadership frameworks, including ideas about ownership and intrinsic motivation, build on this basic distinction.

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