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Functional Communication Training and Most-To-Least Prompting as Treatments for Problem Behavior

Functional communication training (FCT) is a treatment for problem behavior in which the learner is taught a communicative behavior that fulfills the same function as the problem behavior. Although effective, when FCT is used to request breaks from work, limitations include increased time spent in breaks and reduced task-related responding. An alternative treatment is most-to-least prompting (MTL) of a task in which a therapist provides the most helpful prompts for task-related responding (e.g., physical guidance) and gradually reduces the amount of help (e.g., visual prompt and then verbal) until the learner responds independently. We evaluated FCT and MTL in a multiple treatments design with an 11-year-old girl with severe developmental disabilities. Both treatments reduced problem behavior from baseline levels, and academic responding was greater during MTL than during FCT. MTL is an errorless teaching approach conceptualized as an abolishing operation that reduces the aversiveness of a task and makes escape less valuable.