What is shaping?
Shaping teaches a new behavior by reinforcing successive approximations that progressively resemble a clearly defined target.
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What is shaping?
Shaping teaches a new behavior by reinforcing successive approximations that progressively resemble a clearly defined target.
What makes shaping a form of differential reinforcement?
Differential reinforcement means reinforcing some responses while not reinforcing others.
How does shaping differ from chaining?
Shaping builds one behavior through closer approximations; chaining teaches a sequence of distinct steps.
When is shaping useful?
Use shaping when the learner is unlikely to perform the complete target behavior without first learning smaller changes in a measurable feature of the response.
What should a target behavior definition specify?
Specify exactly what the learner will do and the conditions under which the response counts.
Why is “says ‘help’ aloud after a difficult task” clearer than “communicates clearly”?
“Communicates clearly” is vague; “says ‘help’ aloud after encountering a difficult task” describes an observable response and its condition.
What does a baseline establish before shaping begins?
A baseline shows what the learner already does, how often, and under what circumstances.
What should a starting approximation build on?
Whenever possible, choose a starting approximation that builds on a response already in the learner’s repertoire.
What four qualities should a shaping step have?
Each step should be observable, closer to the target, achievable, and adjustable based on progress.
How should the shaping criterion change with the learner’s progress?
If a step is too difficult, choose a smaller change; if the learner meets it reliably, move the criterion closer to the target.
How should reinforcement be delivered during shaping?
Choose a reinforcer that matters to the learner and deliver it promptly when the current approximation occurs.
What happens to reinforcement as an approximation becomes reliable?
As the response becomes reliable, reinforce a closer approximation and stop arranging reinforcement for the earlier approximation as the taught response.