Integration of experimental functional analysis procedural advancements: Progressing from brief to extended experimental analyses.

Despite the utility of experimental functional analysis methodology, not all applications produce differentiated results. Factors such as interaction effects or methodological inefficiencies may compromise the likelihood of obtaining differentiated outcomes. Various studies have addressed methods to improve the efficiency of experimental functional analysis methodology (e.g., analysis of within-session responding). In the current study, we describe an updated model for progressing from brief to extended experimental analyses. The model incorporates several procedural refinements developed over the past 20+ years of experimental functional analysis research and additional conditions to confirm or annul findings. We present data for 20 participants who were referred for assessment and treatment of a variety of behavior problems (e.g., stereotypy, aggression, self-injury). We generally terminated the analyses when response patterns were consistent with established best-practice functional analysis methodology. Results showed conclusive interpretations were obtained for 100% of participants.