SAPROF-SO Training Version 1 door Dr. Gwenda Willis

AbstractContemporary sexual recidivism risk assessment instruments focus predominantly on negative attributes associated with an increased risk for recidivism. They pay minimal attention to protective factors that mitigate recidivism risk. The Structured Assessment of PROtective Factors against Sexual Offending (SAPROF-SO) is a clinician-rated measure of protective factors relevant to sexual offending. The SAPROF-SO was developed initially as a standalone actuarial tool, with an SPJ additional manual for use with the original SAPROF under development. This workshop will offer a certified training opportunity for clinicians interested in learning to score and interpret the SAPROF-SO. The SAPROF-SO includes 14 core items across three subscales: Resilience, Adaptive Sexuality, and Prosocial Connection & Reward. Research supports its interrater reliability, construct validity, and predictive validity across routine and above average risk samples (e.g., Carr et al., 2025; Nolan et al., 2023; Willis et al., 2020). The SAPROF-SO demonstrates incremental predictive validity to the Static-99R, and users can now combine results of the SAPROF-SO with the Static-99R to obtain 5-year sexual recidivism risk estimates (Kelley et al., 2025).

References

Carr, A. E., Kelley, S. M., Willis, G. M., & Thornton, D. (2025). The predictive validity of the SAPROF-SO for success on supervised release from a secure treatment center. Sexual Abuse, Advance online publication. https://doi.org/10.1177/10790632251328958

Kelley, S. M., Willis, G. M., & Thornton, D. (2025). Structured Assessment of PROtective Factors against Sexual Offending (SAPROF-SO) Version 1: Practitioner’s Workbook Figshare. https://doi.org/10.6084/m9.figshare.28378595.v1

Nolan, T., Willis, G. M., Thornton, D., Kelley, S. M., & Beggs Christofferson, S. M. (2023). Attending to the positive: A retrospective validation of the Structured Assessment of Protective Factors-Sexual Offence Version. Sexual Abuse, 35(2), 241-260. https://doi.org/10.1177/10790632221098354

Willis, G. M., Kelley, S. M., & Thornton, D. (2020). Are protective factors valid constructs? Inter-rater reliability and construct validity of proposed protective factors against sexual reoffending. Criminal Justice and Behavior, 47, 1448-1467. https://doi.org/10.1177/0093854820941039

BioGwenda Willis, Ph.D., is an Associate Professor in clinical psychology at the University of Auckland, Aotearoa New Zealand, and clinical psychologist. Her research and clinical interests focus on strengths-based approaches to psychological assessment and therapy in forensic/correctional settings and sexual abuse prevention. Dr Willis provides training and consultation to clinicians internationally on topics including the practical application of the Good Lives Model, Trauma-Informed Care, and the SAPROF-SO. She is a Fellow of the Association for the Treatment and Prevention of Sexual Abuse (ATSA) and her research has been widely cited.

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