Evidence-Based Practice: Functional Behavior Assessment (FBA)
Overview of Functional Behavior Assessment (FBA)
Functional behavior assessment (FBA) is a systematic set of strategies that is used to determine the underlying function or purpose of a behavior, so that an effective intervention plan can be developed. FBA consists of describing the interfering or problem behavior, identifying antecedent or consequent events that control the behavior, developing a hypothesis of the behavior, and testing the hypothesis. Data collection is an important part of the FBA process. Often, teachers/practitioners use functional communication training (FCT), differential reinforcement, response interruption/redirection, extinction, and stimulus control/environmental modification to address these behaviors in learners with ASD.
- FBA meets evidence-based criteria with five single-subject and one group design studies across ages, as well as in the domains of behavior and communication.
- With what ages is FBA effective?
- According to the evidence-based studies, learners with ASD ranged in age from 3 to 15 years with the majority of studies showing the effectiveness of functional behavior assessment with elementary age learners.
- What skills or intervention goals can be addressed by FBA?
- FBA targets skills in the domains of behavior and communication, usually with a focus of decreasing inappropriate behavior and teaching or increasing appropriate communicative alternatives. The studies in the evidence base targeted behaviors described as severe, stereotypical, disruptive, escape-motivated, rejecting, and leading. Replacement skills included more appropriate forms of communication such as signing, pointing, talking, and the use of alternative and augmentative communication (AAC) devices.
- In what settings can FBA be effectively used?
- In the evidence base, functional behavior assessment procedures were implemented in a variety of home, school, and community settings.
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Steps for Implementation:
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