Little Zack will be more likely to keep his school desk clean if his teacher praises his efforts rather than criticizes his lack of thoroughness. This illustrates the principle behind __________

A) the law of effect.
B) trial-and-error learning.
C) the law of successive approximations.
D) the learning curve.

Successive Approximations

A series of gradual steps, each of which is more similar to the final desired response.

Law Of Effect

A principle of behavior psychology proposed by Edward Thorndike suggesting that actions which produce satisfying effects in a given situation become more likely to occur again, while actions producing unpleasant effects become less likely.