Comparison of extended versus brief treatments for marijuana use

TitleComparison of extended versus brief treatments for marijuana use
Publication TypeJournal Article
Year of Publication2000
AuthorsStephens, RS, Roffman, RA, Curtin, L
JournalJournal of Consulting and Clinical Psychology
Date PublishedOct
Publication Languageeng
ISBN Number0022-006X (Print)0022-006X (Linking)
Accession Number11068976
KeywordsAdult, Cognitive Therapy/*methods, Female, Follow-Up Studies, Humans, Male, Marijuana Abuse/*therapy, Psychotherapy, Brief/*methods, Psychotherapy, Group/methods, Questionnaires, Recurrence, Treatment Outcome, Washington

Adult marijuana users (N = 291) seeking treatment were randomly assigned to an extended 14-session cognitive-behavioral group treatment (relapse prevention support group; RPSG), a brief 2-session individual treatment using motivational interviewing (individualized assessment and intervention; IAI), or a 4-month delayed treatment control (DTC) condition. Results indicated that marijuana use, dependence symptoms, and negative consequences were reduced significantly in relation to pretreatment levels at 1-, 4-, 7-, 13-, and 16-month follow-ups. Participants in the RPSG and IAI treatments showed significantly and substantially greater improvement than DTC participants at the 4-month follow-up. There were no significant differences between RPSG and IAI outcomes at any follow-up. The relative efficacy of brief versus extended interventions for chronic marijuana-using adults is discussed.

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