Final answer:
The law that states the consequences of a behavior determine the strength of the response connection was developed by psychologist B. F. Skinner, who proposed a theory called operant conditioning.
Step-by-step explanation:
The law that states the consequences of a behavior determine the strength of the response connection was developed by psychologist B. F. Skinner. Skinner proposed a theory called operant conditioning, which focuses on how behaviors are strengthened or weakened based on their consequences. According to the law of effect, behaviors followed by satisfying consequences are more likely to be repeated, while behaviors followed by unpleasant consequences are less likely to be repeated.