The dimensions of change in therapeutic community treatment instrument.
In this article, the authors describe the refinement and preliminary evaluation of the Dimensions of Change in Therapeutic Community Treatment Instrument (DCI), a measure of treatment process. In Study 1, a 99-item DCI, administered to a cross-sectional sample of substance abuse clients (N = 990), was shortened to 54 items on the basis of results from confirmatory factor analyses and item response theory invariance tests. In Study 2, confirmatory factor analyses of the 54-item DCI, completed by a longitudinal cohort of 993 clients, established and validated an 8-factor solution across 2 subpopulations (adults and adolescents) and 2 time points (treatment entry and 30-days postentry). The results of the 2 studies are encouraging and support use of the 54-item DCI as a tool to measure treatment process.
Orlando
Maria
M
RAND Drug Policy Research Center, Santa Monica, CA 90407-2138, USA. orlando@rand.org
Wenzel
Suzanne L
SL
Ebener
Pat
P
Edwards
Michael C
MC
Mandell
Wallace
W
Becker
Kirsten
K
D000293:Adolescent; D000328:Adult; D003156:Community Mental Health Services; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000628:therapy*; D011795:Surveys and Questionnaires