| Abstract: | This article presents a social-cognitive theory of substance abuse. The exercise of self-regulatory agency plays a central role in this approach. Perceived self-efficacy is the foundation of human agency. Unless people believe they can produce desired effects by their actions, they have little incentive to act. Self-efficacy beliefs promote desired changes through cognitive, motivational, affective, and choice processes. Perceived self-efficacy exerts its effects on every phase of personal change—the initiation of efforts to overcome substance abuse, achievement of desired changes, recovery from relapses, and long-term maintenance of a drug-free life. Assessments of perceived efficacy identify areas of vulnerability and provide guides for treatment. Substance abuse is a social problem, not just a personal one. Reducing substance abuse also requires policy initiatives and social remedies achieved through the exercise of collective efficacy. |
