Prediction of risk for drug use in high school students.

On the basis of questionnaires administered to almost 2,000 high school students in Cali, Colombia, a subset of items was selected that deal primarily with parent--child relationships. This 53-item set, referred to as the Drug Risk Scale (DRS), was administered to two new cross-validation samples, one consisting of high school students and the other consisting of drug addicts attending drug rehabilitation centers. Significant differences in parent--child relations were found between these new groups. The DRS was also found to have reasonably high sensitivity and specificity. Its potential value as a risk-prediction instrument is discussed.