The impact of substance abusers’ readiness to change on psychological and behavioral functioning

Abstract Heather and Rollnick’s 1993 Readiness to Change Questionnaire directly measures the first three stages of behavior change: precontemplative, contemplative, and action. As part of the St. Louis Target Cities project, an automated assessment procedure was developed to assess individuals seeking substance-abuse services on a variety of dimensions, including readiness to change. This paper describes relationships among the Readiness to Change scales, client self-reports, staff evaluations of psychological symptoms, and other intake assessment measures used in the St. Louis project.