title: Development and evaluation of the Marijuana Reduction Strategies Self-Efficacy Scale.
abstract: To evaluate several psychometric properties of a questionnaire designed to assess college students' self-efficacy to employ 21 cognitive-behavioral strategies intended to reduce the amount and/or frequency with which they consume marijuana, we recruited 273 marijuana-using students to rate their confidence that they could employ each of the strategies. Examination of frequency counts for each item, principal components analysis, internal consistency reliability, and mean interitem correlation supported retaining all 21 items in a single scale. In support of criterion validity, marijuana use-reduction self-efficacy scores were significantly positively correlated with cross-situational confidence to abstain from marijuana, and significantly negatively correlated with quantity and frequency of marijuana use and marijuana-related problems. In addition, compared with respondents whose use of marijuana either increased or remained stable, self-efficacy was significantly higher among those who had decreased their use of marijuana over the past year. This relatively short and easily administered questionnaire could be used to identify college students who have low self-efficacy to employ specific marijuana reduction strategies and as an outcome measure to evaluate educational and skill-training interventions.
authors: Department of Psychology, Bowling Green State University.
authors: Alan K
authors: AK
authors: Davis
authors: Department of Psychology, Bowling Green State University.
authors: Lawrence A
authors: LA
authors: Osborn
authors: Department of Psychology, Bowling Green State University.
authors: Jaclyn
authors: J
authors: Leith
authors: Department of Psychology, Bowling Green State University.
authors: Harold
authors: H
authors: Rosenberg
authors: Department of Psychology, Bowling Green State University.
authors: Lisham
authors: L
authors: Ashrafioun
authors: Department of Psychology, Bowling Green State University.
authors: Anna
authors: A
authors: Hawley
authors: Department of Psychology, Bowling Green State University.
authors: Erin E
authors: EE
authors: Bannon
authors: Department of Psychology, Bowling Green State University.
authors: Samantha
authors: S
authors: Jesse
authors: Department of Psychology, Bowling Green State University.
authors: Shane
authors: S
authors: Kraus
authors: Department of Psychology, Bowling Green State University.
authors: Elizabeth
authors: E
authors: Kryszak
authors: Department of Psychology, Bowling Green State University.
authors: Nicole
authors: N
authors: Cross
authors: Department of Psychology, Bowling Green State University.
authors: Victoria
authors: V
authors: Carhart
authors: Department of Psychology, Bowling Green State University.
authors: Kyoung-deok
authors: KD
authors: Baik
mesh_terms: D000293:Adolescent; D000328:Adult; D002188:Cannabis; D005260:Female; D006801:Humans; D008297:Male; D002189:Marijuana Abuse / Q000534:rehabilitation*; D011594:Psychometrics / Q000295:instrumentation*; D015203:Reproducibility of Results; D020377:Self Efficacy; D013334:Students / Q000523:psychology*; D011795:Surveys and Questionnaires / Q000592:standards*; D055815:Young Adult