A study on validity and reliability of teacher efficacy scale

Abstract

This study aims at developing a valid and reliable tool of Likert-type to measure the efficacy levels of teachers in different branches. The study group of this research involves 328 teachers working in primary, secondary and high schools in the central district of Siirt. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used for data analysis. According to the results of the analysis, the scale consists of 33 items and 4 sub-dimensions. These sub-dimensions were named as self-efficacy, professional efficacy, programme and content knowledge efficacy and school-parent and community relations efficacy. The reliability of the scale was measured through Cronbach’s alpha internal consistency coefficient and Spearman-Brown split-half reliability coefficient methods; and with a reliability coefficient of .93, the scale was found quite reliable. As a result of this study, it was concluded that the scale is a valid and reliable measurement tool to determine the teacher efficacy levels. Moreover, based on the results of this study, it is suggested that a similar study might be carried out with different participants such as students, parents and administrators to develop a broader and more detailed scale to reveal teacher efficacy based on their branches.