The person MOST closely associated with the law of effect is __________

A) Watson.
B) Skinner.
C) Pavlov.
D) Thorndike.

The law of effect is a principle of behaviorism that was first proposed by Edward Thorndike. It states that behaviors that produce favorable consequences are more likely to be repeated, while those that produce unfavorable consequences are less likely to be repeated. Thorndike's work on this principle laid the foundation for B.F. Skinner's work on operant conditioning.