Abrupt discontinuation of functional communication training can cause resurgence of challenging behavior. Teaching multiple alternative responses in sequence ("serial training") may reduce resurgence, relative to teaching a single alternative. However, previous evaluations of serial training included a different number of response…

Functional communication training (FCT) is a common function-based intervention for young children with or at risk for autism spectrum disorder (ASD) to teach an alternative communicative response to replace problem behavior. While FCT is effective in decreasing problem behavior, often the communicative behavior that is taught occurs at a higher…