Thorndike was known for his work with ________.

A) a Skinner box
B) a puzzle box
C) modeling
D) monkeys

Thorndike is best known for his work with the puzzle box, in which cats were placed and had to figure out how to escape to obtain food. This work led to his "law of effect," which proposed that behaviors that are followed by positive outcomes are more likely to be repeated, while behaviors followed by negative outcomes are less likely to be repeated.