Get access

Psychometric Properties of the Differentiation of Self Inventory-Revised in Turkish Adults


  • The authors would like to express thanks to Dr. Elizabeth Skowron for her confirmation during the backtranslation process and to the editor Dr. Fred Piercy and anonymous reviewers for their invaluable and insightful comments on the earlier draft of this article.
  • Address correspondence to Erkan Işık, Department of Psychological Counseling & Guidance, Mevlana University, Yeni İstanbul Cad. No:235 42003, Selçuklu, Konya, Turkey; E-mail:


The purpose of the current study was to examine the validity and reliability of (Journal of Marital and Family Therapy 2003, 29, 209) Differentiation of Self Inventory-Revised (DSI-R; Skowron & Schmit, 2003) in Turkish adults. The DSI-R was translated, independently back-translated, and revised. Two independent samples of adults over the age of 25 were used. The original 46-item DSI-R was not supported by the data derived from Sample 1 (n = 221). However, a revised 20-item, four-factor model fit the data well. This 20-item model was subsequently cross-validated with a second sample of Turkish adults (n = 187). Scale scores showed adequate internal consistency, 5-week test–retest reliability, and satisfactory convergent and criterion-related validity. It was concluded that Turkish DSI-R (DSI-T) is a valid and reliable measure to assess an individual's differentiation level. In light of the findings, implications for the use of the DSI-T and ideas for future research are discussed.