Research Interests

Adolescent offenders, youth violence, risk assessment, risk reduction, protective factors, callous-unemotional features in adolescents, mental health, forensic assessment, and treatment of adolescent offenders. 

Selected Publications

Viljoen, J. L., Gray, A. L., & Barone, C. (2016). Assessing risk for violence and offending in adolescents. In R. Jackson and R. Roesch (Eds.), Learning Forensic Assessment (pp. 357 – 388) New York: Routledge.

Viljoen, J. L., Brodersen, E., Shaffer, C., & McMahon, R. J. (2016). Risk reduction interventions for adolescent offenders. In K. Heilbrun, D. DeMatteo, N. S. Goldstein, K. Heilbrun, D. DeMatteo, N. S. Goldstein (Eds.) , APA handbook of psychology and juvenile justice (pp. 517-544). Washington, DC, US: American Psychological Association. doi:10.1037/14643-024

Viljoen, J. L., Gray, A. L., Shaffer, C., Latzman, N., Scalora, M., & Ullman, D. (2015). Changes in J-SOAP-II and SAVRY scores over the course of residential, cognitive-behavioral treatment for adolescent sexual offending. Sexual Abuse: Journal of Research and Treatment. doi: 10.1177/1079063215595404

Spice, A., Viljoen, J. L., Douglas, K. S., & Hart, S. D. (2015). Remorse, psychopathology, and psychopathy among adolescent offenders. Law and Human Behavior, 39(5), 451-462. doi:10.1037/lhb0000137

Viljoen, J. L., Brodersen, E., Shaffer, C., Muir, N., & ARROW Advisory Team (2014, December). Adolescent Risk Reduction and Resilient Outcomes Work-Plan. Burnaby, British Columbia: Simon Fraser University.

Viljoen, J. L., Nicholls, T. L., Cruise, K. R., Desmarais, S. L., & Webster, C. D. with contributions by Douglas-Beneteau, J. (2014). Short-Term Assessment of Risk and Treatability: Adolescent Version (START:AV) – User Guide. Burnaby, British Columbia: Mental Health, Law, and Policy Institute.