Abstract

This paper outlines the development of a structured system for measuring the observed clinical profess of sexual offenders undertaking a treatment programme. There are a number of basic clinical goals indicated by most sexual offender treatment programmes. This paper details the development of a 12-factor rating system based on a Standardized Goal Attainment Scaling system to measure the attainment of clinical goals for sex offenders undergoing treatment. Initial validation work shows that the system provides a reliable method of measurement. As predicted, ratings made by group facilitators of sexual offenders at completion of treatment were related to traditional self-report measures of sexual aggression completed by the offenders. Initial indications are that the goal attainment system works effectively as a measure of clinical change. The Standard GAS information can be used on both a group and individual case level. Data presented illustrate these uses. It is hoped that the Standard GAS can be developed into an effective predictor of treatment performance.