Comparison of extended versus brief treatments for marijuana use

Robert S. Stephens, Roger A. Roffman, Lisa Curtin
2000 Journal of Consulting and Clinical Psychology  
Adult marijuana users (N = 291) seeking treatment were randomly assigned to an extended 14session 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
more » ... o pretreatment levels at l-, 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.
doi:10.1037//0022-006x.68.5.898 pmid:11068976 fatcat:hyxshkoxkfhf3jclxb3jkts32i