Özyeterlik Kaynakları Ölçeği\'nin Türkçe\'ye Uyarlanması Adaptation of Sources of Self-Efficacy Inventory into Turkish

The purpose of the present study was to adapt the Sources of Self-Efficacy Inventory (SOSI) into Turkish. The scale was developed by Kieffer and Henson (2000) for teachers considering four sources of selfefficacy proposed by Bandura (1997) which are mastery experience, vicarious experience, social persuasion, and physiological and emotional states. In the pilot study, the scale was administered to 256 pre-service teachers and then revised based on the results of confirmatory factor analysis. In the main study, data were collected from 302 teachers who work in elementary and high schools. The results of confirmatory factor analysis verified that the scale with 27 items consists of four subscales as proposed. Cronbach alpha reliability coefficients of the scale ranged between .75 and .78. Findings suggest that scores obtained from the adapted scale are valid and reliable in examining the sources of teacher self-efficacy.