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.

Trial-Based Functional Analysis Informs Treatment for Vocal Scripting

Research on trial-based functional analysis has primarily focused on socially maintained challenging behaviors. However, procedural modifications may be necessary to clarify ambiguous assessment results. The purposes of this study were to evaluate the utility of iterative modifications to trial-based functional analysis on the identification of putative reinforcement and subsequent treatment for vocal scripting. For all participants, modifications to the trial-based functional analysis identified a primary function of automatic reinforcement. The structure of the trial-based format led to identification of social attention as an abolishing operation for vocal scripting. A noncontingent attention treatment was evaluated using withdrawal designs for each participant. This noncontingent attention treatment resulted in near zero levels of vocal scripting for all participants. Implications for research and practice are presented.