Field Theory: Lewin's field theory posits that behavior is a function of the person and their environment, and that these factors interact to produce an individual's actions.
Force Field Analysis: A framework developed by Lewin to analyze the forces driving and restraining change within an organization or social system.
Unfreezing-Change-Refreeze Model: Lewin's three-stage model of organizational change, which involves unfreezing the current state, implementing change, and then refreezing the new state.