The sample for the study were white, middle-class subjects, ages 17 to 25, from treatment and counseling centers in Washington, DC, and Maryland, who voluntarily completed a questionnaire. Results of the study indicated that the concept of self is not a valid concept on which to base the degree of adjustment through the actual-ideal discrepancy, and that rehabilitated drug abusers were less adjusted than drug abusers and non-drug users. The dissertation includes a review of the literature. A section on methodology describes the instruments of measurement used in the study and data collection procedures. A chapter on analyses of data also describes the design of the study and provides psychological inventory data. Footnotes, tables, bibliography, appendixes