Abstract
The primary purpose of this study was to assess the effect of participation in a cognitively oriented, pretreatment intervention on the control orientation of substance-using behavior of 48 adolescents admitted to drug-free outpatient treatment. Subjects were randomly assigned to one of two treatment conditions and to one of two counselors. A comparison of changes in control orientation between groups was made after implementation of the intervention with the treated group and after both groups had participated in six counseling sessions. A 2-way multivariate analysis of covariance showed type of treatment was significant. Follow-up analyses indicated the treated group were significantly more internal than the control group at both posttest occasions. A one-tailed chi-squared test indicated no significant association in substance use for the groups.
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