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Robert S Stephens
Correspondence to: Robert S Stephens, Department of Psychology 0436, Virginia Tech, Blacksburg, Virginia 24061, USA
Is motivational interviewing effective for regular users of marijuana who are ambivalent to stopping the drug?
188 adults who used marijuana, who were identified via advertisements offering objective, non-judgemental feedback about their marijuana use and whether it was potentially harmful. Information about marijuana use was obtained using the Marijuana Check-Up (MCU; adapted from the Drinker’s Check-Up), and participants were asked about whether they had intentions to change drug use, and their stage of change classified. Most participants reported that they did not plan to change their marijuana use (pre-contemplation), or were thinking of changing their use, but not in the next month (contemplation). Main exclusions: use of marijuana on fewer than 15 days over the past month; alcohol or other substance abuse; or severe psychiatric disorder.
University of Washington Research Centre, Seattle, Washington, USA; time period not stated.
Personalised feedback, multimedia feedback, or delayed feedback. Personalised feedback (PF): involved feedback on the …
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