The predictive properties of dynamic sex offender risk assessment instruments: A meta-analysis.

This meta-analysis is the first to our knowledge to evaluate the predictive properties of dynamic sex offender risk assessment instruments, which are designed to assess factors associated with recidivism that are amenable to change. Based on 52 studies (N = 13,446), we found that dynamic risk assessment instruments have small-to-moderate predictive properties, with Cohen's ranging between 0.71 for sexual recidivism (41 studies, 22 unique samples, N = 5,699) and 0.