Which behavioral theorist is associated with the law of effect, suggesting that behaviors followed by favorable consequences are likely to be repeated?

The correct choice is associated with Edward L. Thorndike, who articulated the law of effect as part of his work in behavioral psychology. This principle states that behaviors that are followed by positive outcomes or reinforcements are more likely to be repeated in the future, whereas behaviors that lead to negative outcomes are less likely to recur. Thorndike demonstrated this concept through experiments with cats in puzzle boxes, noting that the cats learned to escape more quickly on subsequent trials when their previous attempts were met with rewards, such as food.

The law of effect laid the groundwork for later theories of learning and is fundamental to understanding behavior modification. It emphasizes the importance of consequences in shaping actions—a key concept in behaviorism that is influential in various educational and psychological practices today.

Although other theorists like B.F. Skinner built upon these ideas with the concept of operant conditioning, it was Thorndike who first defined the relationship between behavior and its consequences, making him the key figure associated with the law of effect.