Research

The Predictive Validity of Static-99R for Sexual Offenders in California (2016 Update) (PDF)
A Five-Level Risk and Needs System: Maximizing Assessment Results in Corrections through the Development of a Common Language (PDF)
The Field Validity of Static-99/R Sex Offender Risk Assessment Tool in California (Hanson et al, 2014) (PDF)
Static Risk Categories Advance Online (Hanson et al 2016 October) (PDF)
Not Always a SO (Hanson et al May 2017) (PDF)
Assessing the Risks and Needs of Supervised Sexual Offendors (Hanson, Helmus, Harris November 2015) (PDF)
What Makes a “Good” Risk Assessment? (Helmus, ATSA Blog, November 2015) (PDF)
"Frightening and High" The Supreme Court's Crucial Mistake About Sex Crime Statistics (Ellman and Ellman, 2016) (PDF)
What Sexual Recidivism Rates Are Associated with Static-99R and Static-2000R Scores? (Hanson, Thornton, Helmus, Babchishin, 2015) (PDF)
New Risk Categories for Static-99R and Static-2002R (Hanson, Babchishin, Helmus, Thornton, & Phenix, 2015) (PDF)
Communicating the Results of Criterion Referenced Prediction Measures... (Hanson et al 2016) (PDF)
The Predictive Validity of Static-99R Over 10 Years for Sexual Offenders in California (2018 Update) (PDF)
The Predictive Validity of Static-99R Over 10 Years for Sexual Offenders in California Study (PowerPoint) (Lee, 2018) (PDF)

Research on Females Who Have Sexually Offended

Christopher, Lutz-Zois, & Reinhardt, 2007. Female Sexual Offenders, Personality Pathology as a Mediator (PDF)
Cortoni and Hanson (2005).pdf
Elliot, Eldridge, Ashfield, Beech (2010). Exploring risk - Potential static, dynamic, protective, and treatment factors in the clinical histories of fsos (PDF)
Faller, C. K. (1987). Women Who Sexually Abuse Children (PDF)
Hanson & Bussiere (1998). Predicting relapse A Meta-Analysis of Sexual Offender Recidivism Studies (PDF)
Hanson & Harris, 2000. Dynamic Predictors of Sexual Offense Recidivism (PDF)
Hayes, S. and Baker, B. (2014). Female Sex Offenders and Pariah Femininities Rewriting the Sexual Scripts (PDF)
Johansson-Love, J. & Fremouw, W. (2009). Female Sex Offenders A Controlled Comparison of Offender and Victim Crime Characteristics (PDF)
O'Connor (1987). Female Sex Offenders (PDF)
Epperson, E., Fullmer, N.,  & Phenix, A., 2018. Female Sex Offender Recidivism: An Empirical Analysis of Registered Female Sex Offenders in California (PDF)