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Psychol Addict Behav. 2010 Jun;24(2):265-73. doi: 10.1037/a0018859.

A brief, web-based personalized feedback selective intervention for college student marijuana use: a randomized clinical trial.

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  • 1Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195, USA.


Despite clear need, brief web-based interventions for marijuana-using college students have not been evaluated in the literature. The current study was designed to evaluate a brief, web-based personalized feedback intervention for at-risk marijuana users transitioning to college. All entering first-year students were invited to complete a brief questionnaire. Participants meeting criteria completed a baseline assessment (N = 341) and were randomly assigned to web-based personalized feedback or assessment-only control conditions. Participants completed 3-month (95.0%) and 6-month (94.4%) follow-up assessments. Results indicated that although there was no overall intervention effect, moderator analyses found promising effects for those with a family history of drug problems and, to a smaller extent, students who were higher in contemplation of changing marijuana use at baseline. Implications of these findings for selective intervention of college marijuana use and web-based interventions in general are discussed.

(PsycINFO Database Record (c) 2010 APA, all rights reserved).

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