Intrinsic vs Extrinsic Motivation

Role

One of the most practically important and most widely violated findings in motivational psychology is the overjustification effect: introducing external rewards for activities that were previously intrinsically motivated reliably reduces subsequent intrinsic motivation, converting previously self-sustaining behavior into contingent, reward-dependent behavior. Schools that grade everything, workplaces that manage through pure incentive structures, and parents who pay for grades are all systematically undermining the intrinsic motivation that would sustain lifelong learning and self-directed growth — often without any awareness that the intervention is producing this effect. Understanding when external rewards help (novel, initially unappealing tasks) versus harm (already intrinsically motivated behaviors) is one of the most consequential applications of psychology to management, education, and parenting.