Use Intensity, Functional Elaboration, and Contextual Constraint as Facets of Adolescent Alcohol and Marijuana Use

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Longitudinal data from a normal population were used to describe the situational variety of adolescent alcohol and marijuana use over the age period from 12 to 21 Also examined were the relationships among 3 facets of use intensity, functional elaboration, and lack of situational constraint of use. The 3 facets of use were found to increase simultaneously with increasing age and to be positively correlated with each other Furthermore marijuana use was found to be situationally less constrained than alcohol use from the age of 15 on Implications of these findings for intervention efforts are discussed.

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