The Validity of Functional Behavioral Assessment with Students of Average Intellectual Ability

Abstract

In the United States, functional behavioral assessment (FBA) is a new requirement of the 1997 Amendments to Individuals with Disabilities Education Act for students who exhibit challenging behavior. FBA has been extensively studied with persons with severe and profound intellectual disabilities within clinical settings. However, there is limited research with students with average intellectual ability in public education settings. This article reviews seven pertinent validity indices associated with FBA: external validity, content validity, convergent validity, criterion validity, treatment validity, social validity, and habilitative validity. In short, much research is needed to inform practitioners about conducting valid FBAwith students with average intellectual ability.