ABA Assist

Prompt Fading

Also called: fading, most-to-least, least-to-most, transfer of stimulus control

Definition

The systematic reduction of supplementary antecedent assistance so that responding transfers from the prompt to the naturally occurring discriminative stimulus. Common arrangements include moving from most intrusive to least intrusive assistance, the reverse, and progressive delay before delivering a prompt.

Examples

  • Hand-over-hand guidance is reduced to a touch at the elbow, then to a gesture, then to nothing at all across several sessions.

    Assistance is systematically thinned while the response stays intact.

  • A staff member waits two seconds before offering a model, then four seconds, giving the learner room to respond independently.

Not prompt fading

  • Removing all help at once to see whether the learner can manage. That is a probe, not fading, and it risks a long run of errors.

  • Continuing to give the same physical guidance every session for months. Without reduction there is no fading, and prompt dependence becomes likely.

See also

Written from

  • baer-wolf-risley-1968 — Generality of behavior change

Written from standard teaching practice and the stimulus-control literature. No textbook glossary consulted or paraphrased.

This entry has not yet been through clinical review. Treat it as a draft.

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