Theoretical considerations suggest that problem behavior should increase when a child's competency does not match the curricular demands of the environment (i.e., when there is poor environmental fit). In the present study, environmental fit was examined for six children with autism spectrum disorders. Results indicated that the children exhibited…

This article provides a review of current literature on the comparative validity of different functional assessment and analysis strategies. It describes functional assessment as an outcome-driven process and explains observational assessment strategies and using assessment information to plan interventions. A proposed process for teachers and…

Discussion of family involvement in functional assessment (FA) with individuals who have autism or related disabilities first provides a rationale for family involvement, then reviews the literature and offers guidelines including: recognize, respect, and accommodate families' individuality; create a context for family centered participation; take…

This article introduces this special issue on functional assessment methods and their application to children and youth with autism. It traces the 30-year history of functional assessment and briefly summarizes each of the following articles, noting the common emphasis on social validity and using the science and technology of functional…