Construct Validity of the Relationship Profile Test: Links with Defense Style in Substance Abuse Patients and Comparison with Nonclinical Norms

One-hundred fourteeen adults undergoing voluntary inpatient treatment for substance use disorders (SUDs) completed the Relationship Profile Test (RPT; Bornstein et al. 2003), and Bond, Gardner, and Christian’s (1983) Defense Style Questionnaire (DSQ). Analyses examined gender differences in RPT subscale scores and evaluated patterns of RPT-DSQ correlations in the SUD sample; a secondary analysis compared RPT scores in the present sample with those of Bornstein et al.’s (Journal of Personality Assessment 80:64–74, 2003) nonclinical sample. Results supported the construct validity of the RPT as a measure of destructive overdependence (DO), dysfunctional detachment (DD), and healthy dependency (HD) and provided preliminary clinical norms for the DO, DD, and HD scales. Findings also documented potential limitations of the RPT in SUD patients. Continued evaluation is needed to assess the utility of the RPT in clinical populations.