The Colorado Sex Offender Risk Scale

This study documents the development of an adult sex offender risk assessment tool. A sample of 494 sex offenders were followed for an average of 30 months. A risk scale was developed based upon criminal and therapeutic outcomes. The final risk scale included prior juvenile felony convictions, prior adult felony convictions, failure of the first or second grade, not being employed, victim being intoxicated, the perpetrator reporting not being sexually aroused during the crime, possession of a weapon during the crime, denial in therapy, sexual deviance in therapy, and motivation in therapy. The risk scale provided significant relative risk ratios against program failure at 12 and 30 months. Overall, those scoring high on the risk tool were 372% as likely to fail as those scoring low.