Maynard is learning to put on his socks. His father reinforces him when he first grasps his  sock with both hands. He is then reinforced for placing the sock on his toes, then his foot, and finally when he pulls it up his calf. What principle is his father employing?

A) fading
B) shaping
C) modeling
D) weaning
E) imitation

Shaping

A behavioral technique involving the reinforcement of successive approximations of a desired behavior until the final target behavior is achieved.

Reinforces

Stimuli that strengthen or increase the likelihood of a behavior by being presented as a consequence of that behavior.

Calf

A young bovine animal, especially the young of the domestic cow or a young elephant, whale, hippo, or moose.