Comparability of Drug Abuse Rating Scales

Abstract
Drug histories of 144 college students were rated on five different scales of degree of drug use. The scales were based on frequency of marijuana use, life style, and nature of marijuana use, number of drugs used, types of drugs used, and over-all involvement with drugs. While significant intercorrelations were obtained, the most consistent scales were those that took into account life style, history, and over-all involvement rather than simply drug type or single drug frequency. It was concluded that many individual Ss would be misclassified in regard to this position-toward-drug-use by ratings based only on drug type or frequency.

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