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Objectives. Based on the concept of “stage of change,” this study examines the relationship between patients' motivation for substance abuse treatment and their posttreatment improvements in the areas measured by the Addiction Severity Index (ASI; alcohol, drug, medical, psychiatric). We attempt to answer the following questions: Do clients' perceptions of “need for drug, alcohol, psychiatric, and...
Increases in adolescent marijuana and other drug use have created widespread concern. One theory argues that increased use of cigarettes and alcohol among younger adolescents leads to greater use of marijuana which, in turn, leads to subsequent use of other drugs (e.g. cocaine, heroin, hallucinogens). Detractors of this theory claim that use of these substances is a symptom of a larger set of destructive...
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