Why is a reinforcement different from what people often call a reward?

Reinforcement and rewards are related but distinct concepts in behavioral psychology. Reinforcement refers to any consequence that strengthens the likelihood of a behavior being repeated, which can be positive (adding a pleasant stimulus) or negative (removing an unpleasant stimulus). In contrast, a reward is typically seen as a positive outcome or benefit given for a specific action, often focusing on the emotional or motivational aspect. While rewards can serve as reinforcers, not all reinforcers are rewards, as they may not always be perceived positively by the individual.