Explain shaping and provide a brief example for acquiring a new complex behavior.

Explain shaping and provide a brief example for acquiring a new complex behavior.

• A. Reinforcing only the final target behavior.
• B. Punishing all attempts until the final behavior is emitted.
• C. Fading prompts without reinforcement.
• D. Reinforcing successive approximations toward a target behavior.

Answer: (D)

Shaping means reinforcing behaviors that become progressively closer to a desired, final behavior. You reward small steps or approximations that resemble the target, then require a slightly closer step before giving reinforcement again. Prompts can help initial attempts, and you fade those prompts as the learner emits the closer approximations more reliably. For example, to teach a dog to roll over, you’d start by rewarding the dog for lying down. Once lying down is reliable, you reward a cue where the dog turns its head toward its side. When that is steady, you reward the dog for rolling halfway onto its side, and finally for a full roll over. Each successive step is reinforced, and you gradually reduce prompts as the behavior becomes more automatic. This approach contrasts with reinforcing only the final behavior, which wouldn’t build the intermediate steps; relying on punishment for all attempts would suppress progress; and fading prompts without reinforcement wouldn’t establish the gradual learning of the sequence.

Shaping means reinforcing behaviors that become progressively closer to a desired, final behavior. You reward small steps or approximations that resemble the target, then require a slightly closer step before giving reinforcement again. Prompts can help initial attempts, and you fade those prompts as the learner emits the closer approximations more reliably.

For example, to teach a dog to roll over, you’d start by rewarding the dog for lying down. Once lying down is reliable, you reward a cue where the dog turns its head toward its side. When that is steady, you reward the dog for rolling halfway onto its side, and finally for a full roll over. Each successive step is reinforced, and you gradually reduce prompts as the behavior becomes more automatic.

This approach contrasts with reinforcing only the final behavior, which wouldn’t build the intermediate steps; relying on punishment for all attempts would suppress progress; and fading prompts without reinforcement wouldn’t establish the gradual learning of the sequence.