Answer:
shaping
Explanation:
The concept of shaping was first developed by B.F Skinner which is the process of the establishment of a particular behavior which is not performed or learnt by the individual in the present stage. Shaping is the procedure which involves the reinforcement of the various behaviors which are closer to target behavior, this method is also called as successive approximations.
Thus, Richard is doing successive approximations for Cody and the example illustrates concept of shaping.