Thinning Schedules of Reinforcement Following Functional Communication Training for Children with Intellectual and Developmental Disabilities: A Meta-analytic Review

Updated Recommendations for Reinforcement Schedule Thinning following Functional Communication Training

Schedule thinning is a necessary treatment procedure following the acquisition of a communication response during functional communication training. In this article, we update and extend the Hagopian et al. Behavior Analysis in Practice, 4, 4-16, (2011) review and recommendations on schedule-thinning procedures following functional communication training. Since their publication, substantial research has been published on the efficacy, efficiency, and social validity of schedule-thinning methods. We provide updated recommendations for schedule thinning based on contemporary literature that has been published since 2011, as well as discuss key areas for future research.

Using Chained or Tandem Schedules With Functional Communication Training: A Systematic Review

Chained and tandem schedules are a common method for thinning schedules of reinforcement following functional communication training (FCT) in the treatment of problem behavior. We conducted a systematic literature review and meta-analysis of chained and tandem schedules following FCT to describe treatment characteristics and evaluate effects. We identified 38 articles and found reductions in problem behavior across four measures. Results of a random-effects multilevel meta-analysis of rigorous evaluations showed a significant effect of chained or tandem schedules + FCT on problem behavior relative to baseline. We observed resurgence in 77% of cases and 31% of schedule-thinning transitions. Results showed chained schedules resulted in greater reductions in problem behavior relative to tandem schedules. Exploratory moderator analyses suggested extinction, combined reinforcement, and delay and denial tolerance training procedures were associated with greater reductions in problem behavior relative to other treatment characteristics. Implications for practice and future research are discussed.

Contingency-based delay to reinforcement following functional communication training for autistic individuals: A multilevel meta-analysis

LAY ABSTRACT

Functional communication training, an intervention for challenging behavior rooted in principles of applied behavior analysis, has copious empirical support dating back to the mid-1980s for autistic individuals. Recently, there has been a concerted effort to thin reinforcement delivery during functional communication training using contingency-based delays that, in turn, are designed to enhance practicality and feasibility while not compromising efficacy. In this synthesis, we meta-analyzed the literature base with the goal of investigating both combined and across type effectiveness of contingency-based delays. We also aimed to investigate moderating variables that might impact intervention outcomes. Findings showed that contingency-based delays were effective for individuals with an autism spectrum disorder diagnosis and most effective when the delay incorporated some form of positive reinforcement. In addition, differential reinforcement of alternative-based delays was overall more effective when compared to differential reinforcement of other behavior-based delays. Noteworthy moderating variables found to impact contingency-based delay efficacy included the intervention dosage and the topography of behavior. We discuss these findings and highlight directions where additional empirical research is warranted to improve our understanding about contingency-based delays for individuals diagnosed with autism spectrum disorder.

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.