Behavioral Therapy - Shaping is best described as which of the following?

• A. Reinforcing the exact final target behavior only.
• B. Punishing early approximations.
• C. Using modeling to demonstrate the final behavior.
• D. Reinforcing behaviors that approximate or move toward the desired behavior.

Answer: (D)

Shaping builds a new behavior by reinforcing progress toward a target in small, me-thods steps. The idea is to reward each closer approximation to the desired behavior, gradually increasing the criteria so the organism moves step by step from simple actions to the full behavior. For example, teaching a child to say a new word might start with praise for any vocalization, then for a single syllable, then for two syllables, and so on until the full word is produced. The emphasis is on the incremental progress that leads to the final behavior, not just the end result.

This is different from reinforcing only the exact final behavior, which would ignore all the useful intermediate steps that teach the skill. It also diverges from punishment, which aims to reduce unwanted behavior rather than build desired behavior through positive reinforcement. And it’s not primarily about modeling, which uses imitation of someone else to acquire the behavior rather than shaping through successive approximations.