Answer:
Shaping
Explanation:
Shaping: In psychology, the term "shaping" is described as one of the behavior modification technique and involve reinforcing process immediately one by one to reach to a closer approximations so that a targeted behavior is being reached. It is considered as one of the parts in the conditioning process.
Example: Language development, animal training, rehabilitation, etc.
In the question above, the given statement signifies the use of "shaping technique".