Functions of Identity Scale: Turkish Validity and Reliability

Abstract

The aim of the present study was to test the factor structure, convergent validity, and reliability of the Functions of Identity Scale (FIS) on a Turkish college sample. FIS is a 15-item, self-report instrument consisting of five scales. In line with the original version, both the exploratory and confirmatory factor analysis revealed a five-factor structure, each representing distinct functions of identity formation. Convergent validity of the instrument was proved via bivariate correlations with theoretically comparable scales. Finally, internal consistency coefficients, test-retest values, and item-total correlations demonstrated the reliability of FIS for Turkish use. Overall, the findings suggest that the Turkish version of FIS is a useful instrument to assess the diverse functions of identity among Turkish college students.