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SVR:20 Version 2 - changes and applications

Douglas P. Boer


The Sexual Violence Risk – 20 Version 2 was recently updated in 2017, twenty years after the original assessment guide was published. The manual and scoring worksheet are a marked improvement over its predecessor, the worksheet in particular being a significant contribution in and of itself. The brief workshop will focus on the primary changes to the manual (e.g., new / changed items) and the use of the worksheet.


Professor Boer began working at the University of Canberra in September of 2012 after 7 years at the University of Waikato (New Zealand) where he also taught in the Clinical Psychology Programme. Prior to 2006 he worked for the Correctional Service of Canada for about 15 years. He has about 110 publications including articles, book chapters, edited books and test manuals. He helped to co-author the “Sexual Violence Risk – 20 (SVR-20, 1997 and SVR-20 V2, 2017) and the “Assessment of Risk and Manageability for Individuals with Developmental and Intellectual Limitations who Offend Sexually (ARMIDILO-S)”, and the “G” version of the ARMIDILO. Most recently, he has been involved in designing a supervision triage tool for the Victoria Police (the SHARP) and other assessment research with Defense sector in Australia. He also serves on a number of editorial boards, including the “British Journal of Forensic Practice” and the Journal of Applied Research in Intellectual Disabilities. Professor Boer is also a past President of the International Association for the Treatment of Sexual Offenders (IATSO).