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A Two Step Validation of the Performance-Based IISCA: A Trauma-Informed Functional Analysis Model

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Functional analyses often involve extended exposure to evocative events and problem behavior, which potentially places the client at risk of retraumatization. The performance-based, interview-informed synthesized contingency analysis (IISCA) is a brief analysis that is conducted in a single session and applies a trauma-assumed framework in the development of the assessment procedures (e.g., measures of calm, reinforcing precursors to avoid escalation and physical management). We conducted 12 applications of the performance-based IISCA in the United States and Brazil and (1) compared the results to a subset of 7 applications who also experienced the original IISCA and (2) incorporated a function-based treatment informed by the performance-based IISCA in a further subset of 5 of those 12 applications. The results support the use of the performance-based IISCA in that this variation of the IISCA corresponded with the original IISCA and informed effective treatment of problem behavior.

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  1. The low value of the range was from a single implementer in Brazil who had no prior experience with conducting functional analyses.


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Joshua Jessel declares a part-time consultative role at FTF Behavioral Consulting. Gregory P. Hanley declares that he is the owner/founder of FTF Behavior Consulting.

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Correspondence to Joshua Jessel.

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Tess Fruchtman declares no conflict of interest. Natasha Raghunauth-Zaman declares no conflict of interest. Aaron Leyman declares no conflict of interest. Felipe M. Lemos declares no conflict of interest. Henrique Costa Val declares no conflict of interest. Monica Howard declares no conflict of interest.

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Jessel, J., Fruchtman, T., Raghunauth-Zaman, N. et al. A Two Step Validation of the Performance-Based IISCA: A Trauma-Informed Functional Analysis Model. Behav Analysis Practice (2023).

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