DiClemente (Carl DiClemente)

Carl DiClemente is a researcher best known for developing the Transtheoretical Model of Change, which explains how people modify behaviors like quitting smoking or starting exercise. This model identifies stages of change—precontemplation, contemplation, preparation, action, and maintenance—that individuals go through when making a behavioral shift. Understanding these stages helps tailor interventions to support progress at each phase. DiClemente’s work emphasizes that change is a process, often non-linear, requiring different strategies depending on where someone is in their journey. His insights are widely used in health psychology, addiction treatment, and behavior change programs.