Psychometric properties of Physical Self Inventory Turkish version among university students

Abstract

The purpose of this study was to test the validity and reliability of the Turkish version of Physical Self Inventory (PSI) among university students. Methods: One hundred and eighty-seven females and 106 males, totally 293 university students (Mean age 21.97 +/- 1.71 years) participated in this study. The Turkish version of PSI, Physical Self-Description Questionnaire (PSDQ), and Social Physique Anxiety Scale (SPAS) were administered to participants in a group setting. Confirmatory factor analysis (CFA) was used to test construct validity of PSI-Turkish version. In addition, Pearson correlation coefficients were calculated to see relationships between PSI-Turkish and PSDQ subscales for concurrent validity and between PSI-Turkish subscales and SPAS for convergent validity. Cronbach's alpha coefficients were calculated to determine reliability. Results: CFA results provided good fit index values for the model with 24 items indicating similar factor structure with the original scale's six-factor structure. In terms of concurrent validity, it was found positive and statistically significant relationships between PSI-Turkish and PSDQ subscales ranging from 0.65 to 0.84. In addition, statistically significant and negative correlation coefficients were found between social physique anxiety and PSI-Turkish subscales, showing convergent validity. These coef- ficients ranged from -0.23 (physical strength) to -0.45 (physical attractiveness). These findings revealed that concurrent and convergent validities of the PSI-Turkish were supported. Internal consistency coefficients of the PSI-Turkish subscales ranged from 0.55 (physical attractiveness) to 0.89 (sport competence). Conclusion: It can be concluded that PSI-Turkish version is a valid and reliable instrument to measure physical self-perception. (Anatolian Journal of Psychiatry 2017; 18(6): 594-601)