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1. The theory of reasoned action as a model of marijuana use: tests of implicit assumptions and applicability to high-risk young women.

Author

Morrison DM, Golder S, Keller TE, and Gillmore MR

Subjects
Adolescent, Factor Analysis, Statistical, Female, Humans, Models, Psychological, Motivation, Northwestern United States, Pregnancy, Social Values, Decision Making, Marijuana Abuse psychology, Mothers psychology, Pregnancy Complications psychology
Abstract

The theory of reasoned action (TRA) is used to model decisions about substance use among young mothers who became premaritally pregnant at age 17 or younger. The results of structural equation modeling to test the TRA indicated that most relationships specified by the model were significant and in the predicted direction. Attitude was a stronger predictor of intention than norm, but both were significantly related to intention, and intention was related to actual marijuana use 6 months later. Outcome beliefs were bidimensional, and positive outcome beliefs, but not negative beliefs, were significantly related to attitude. Prior marijuana use was only partially mediated by the TRA variables; it also was directly related to intentions to use marijuana and to subsequent use.

Published
2002

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