Hanson, Lloyd, Helmus & Thornton (2012). Developing non-arbitrary metrics for risk communication: Percentile ranks for the Static-99/R and Static-2002/R sexual offender risk tools.
Helmus, Thornton, Hanson & Babchishin (2012). Improving the predictive accuracy of Static-99 and Static-2002 with older sex offenders: Revised age weights.
Babchishin, Hanson, Helmus (2011). The RRASOR, Static-99R, and Static-2002R all add incrementally to the prediction of recidivism among sex offenders.
Thornton, Hanson, & Helmus (2011). Moving beyond the standard model for actuarial assessment for sex offenders. Perspectives: The Quarterly Newsletter of the California Coalition on Sex Offending.