What intervention model focuses on changing behavior through reinforcement and punishment principles?

• A. Behavior modification/Behavioral therapy
• B. Psychodynamic Therapy
• C. Humanistic Therapy
• D. Existential Therapy

Answer: (A)

Changing behavior through reinforcement and punishment is the hallmark of behavior modification, also called behavioral therapy. This approach uses operant conditioning, where consequences shape future actions. The process involves identifying a target behavior, establishing observable criteria, and then applying reinforcement when the behavior occurs to increase it, along with punishment or other consequences to decrease undesired behaviors. For example, a student might earn a token for completed homework and exchange tokens for a preferred activity, strengthening the habit of completing assignments. Through appropriate reinforcement schedules and systematic monitoring, new, desired behaviors become more likely over time while unwanted behaviors diminish. Other therapies—psychodynamic, humanistic, and existential—focus on insight, personal growth, or meaning rather than changing behavior through consequences, so they’re not built around reinforcement/punishment as the primary mechanism.