Adaptation of the Differentiation of Self Inventory Short Form (DSI-SF) to Turkish: Validity and Reliability Study

Abstract

The aim of this study is to adapt the Differentiation of Self Inventory Short Form to Turkish and to conduct validity and reliability analyzes. The research group consisted of university students and adults aged from 20 to 64 (??? = 30.69, sd = 9.56). The structure of the scale was validated by confirmatory factor analysis and the significance of the difference between the 27% upper and lower groups. Selfesteem, trait anxiety, and authenticity metrics were used to the convergent validity. Reliability analyzes were conducted with internal consistency and two-week interval test-retest methods. As a result of the confirmatory factor analysis, the goodness of fit values was reached at the acceptable limits and the four-component structure of DSI-SF was verified. According to the results of the independent sample t test and MANOVA on the difference of the 27% upper and lower groups, scale scores differ significantly in the lower and higher levels of differentiation of self. Moreover, the results obtained from the correlation analyze show that the scale provides convergent validity. The Cronbach’s alpha internal consistency coefficient was .82. Findings show that Differentiation of Self Inventory Short Form is a valid and reliable measurement tool.