Journal
JOURNAL OF CONSULTING AND CLINICAL PSYCHOLOGY
Volume 74, Issue 5, Pages 955-966Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/0022-006X.74.5.955
Keywords
cognitive-behavioral therapy; contingency management; criminal justice populations; marijuana dependence; motivational enhancement therapy
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Marijuana-dependent young adults (N = 136), all referred by the criminal justice system, were randomized to I of 4 treatment conditions: a motivational/skills-building intervention (motivational enhancement therapy/cognitive-behavioral therapy; MET/CBT) plus incentives contingent on session attendance or submission of marijuana-free urine specimens (contingency management; CM), MET/CBT without CM, individual drug counseling (DC) plus CM, and DC without CM. There was a significant main effect of CM on treatment retention and marijuana-free urine specimens. Moreover, the combination of MET/CBT plus CM was significantly more effective than MET/CBT without CM or DC plus CM, which were in turn more effective than DC without CM for treatment attendance and percentage of marijuana-free urine specimens. Participants assigned to MET/CBT continued to reduce the frequency of their marijuana use through a 6-month follow-up.
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