Validating a five-factor marijuana motives measure: Relations with use, problems, and alcohol motives

Author(s): Correia, C. J., Carey, K. B., Borsari, B. E.

Journal/Book: J Couns Psychol. 1998; 45: 750 First St NE, Washington, DC 20002-4242. Amer Psychological Assoc. 265-273.

Abstract: This study adapted and extended M. L. Cooper's (1994) Drinking Motives Measure to examine marijuana motives among 299 college students. An exploratory factor analysis supported the hypothesized 5-factor marijuana motives model, resulting in enhancement, conformity, expansion, coping, and social motives. Analyses supported the internal consistency and concurrent validity of the 5 marijuana motives. Marijuana motives were significant predictors of marijuana use and added to the prediction of use-related problems above and beyond the contribution of lifetime use. Motives and gender interacted in predicting use and use-related problems. Parallel regression analyses revealed that marijuana and alcohol motives predicted comparable amounts of variance in use and use-related problems. However, different patterns of relations emerged across drugs, supporting the discriminant validity of the marijuana and alcohol motives.

Note: Article Carey KB, Syracuse Univ, Dept Psychol, 430 Huntington Hall, Syracuse,NY 13244 USA

Keyword(s): DRUG-USE; MOTIVATIONAL MODEL; COLLEGE-STUDENTS; DRINKING

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