Final answer:
Psychologist B. F. Skinner expanded on Thorndike's law of effect and introduced the concept of operant conditioning. Behaviors that are followed by satisfying consequences are more likely to be repeated, while behaviors followed by unpleasant consequences are less likely to be repeated. Skinner conducted experiments using animals in a Skinner box to study operant conditioning.
Step-by-step explanation:
Psychologist B. F. Skinner built upon Edward Thorndike's law of effect and developed the concept of operant conditioning. According to the law of effect, behaviors that are followed by satisfying consequences are more likely to be repeated, while behaviors followed by unpleasant consequences are less likely to be repeated. Skinner conducted experiments on animals in a Skinner box, where the animals learned to associate their behaviors with a food reward or other consequences. Operant conditioning is a form of learning where the motivation for a behavior occurs after the behavior is exhibited.