ABSTRACT
ACT is an intervention approach that is occurring within many professional disciplines, including within the practice of ABA. Although the assumptions and approaches have shared elements across fields and disciplines, defining features in assessment and treatment define those practices. In behavior analysis, functional assessment of the interaction between the external environment and both private and public behavior is critical. In this chapter we review the initial stages of assessment that may situate clients as potential candidates for successful ACT-based programming that we reviewed in the prior chapters. We then introduce how both direct behavioral and self-report scales can be combined for a comprehensive assessment of psychological flexibility processes that should be targeted within behavioral intervention. The entire context should be considered, including review of client records, post-meeting behavioral measurement, on-going collaboration and consultation with caregivers (in some cases), and on-going collaboration and consultation with the client themselves (in all cases). The concluding half of the chapter emphasizes writing intervention plans from functional assessment results to support medical or necessity for treatment and strategies for documenting and reporting client progress.
