FBA
 FBA is used to better understand the pattern, and purpose, or function, of a behavior. The goal of FBA is to identify events that precede (antecedents) and follow (consequences) a bahavior. Careful understanding of antecedents, behavior, and consequences provides insight into the function of a behavior. It is important to understand the function of a behvior in order to develop more effective interventions.
    According to Carr et al., 1999 research has demonstrated thet the use of FBA increases the effectiveness of interventions. FBA should not be used as a single test, but rather as a multimethod approach. A thorough FBA should includes interventions of parents, teachers, students, classroom observertion, and review of records.
    One limitation of FBA is that it focuses exclusively on observable behaviors without consideration of the underlying autism spectrum disorder. Others have argued that biologiacl factors such hunger or anxiety (Carr, 1994) and diagnostic characteristic and genetic conditions (Reese et al., 2003) should be incorporated when examing behavoir.
    FBA is a useful tool when used by those who understand autism.