title: Choosing drug use measures for treatment outcome studies. I. The influence of measurement approach on treatment results.
abstract: Drug use is measured in a number of different ways in drug treatment outcome studies. Different measures of outcome may yield different results, making comparison across studies difficult. The utility, sensitivity, and level of measurement of five categories of measures are reviewed. It is suggested that research focus on examining the properties of existing drug use measures, on developing methods of evaluating timing and sequence in the relapse process, and on standardizing measurement approaches across studies.
authors.affiliation: Center for Social Welfare Research, School of Social Work, University of Washington, Seattle 98195.
authors.forename: E A
authors.initials: EA
authors.lastname: Wells
authors.forename: J D
authors.initials: JD
authors.lastname: Hawkins
authors.forename: R F
authors.initials: RF
authors.lastname: Catalano
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D010349:Patient Compliance; D019966:Substance-Related Disorders / Q000534:rehabilitation*