Kurt Lewin's change theory consists of three stages: unfreezing, moving to a new level, and refreezing. The unfreezing stage involves finding a way to let go of an old, counterproductive pattern. The moving stage is the process of changing thoughts, feelings, or behaviors to something more productive. The refreezing stage establishes the new change as a habit to prevent backsliding into old ways. Force field analysis also examines driving forces that push for change and restraining forces that resist change, with equilibrium being when the two are balanced and no change occurs.