Adaptation of the Good Teaching Scale into Turkish: Validity and Reliability Study

Abstract

This study aimed to adapt the “Good Teaching Scale” (GTS) developed by Alhija (2017) into Turkish and to test its validity and reliability. The original form of the scale consisted of 5 sub-dimensions and a total of 35 items. The study data were collected from 491 students who enrolled in different postgraduate programs at a higher education institution in Turkey. In order to adapt the scale into Turkish, the language validity was verified, and then EFA and CFA with the different study data were performed for the construct validity of the GTS-Turkish form. Cronbach Alpha and the composite reliability coefficient were calculated to test internal consistency reliability. Results of the factor analysis showed that it was found that the items of the GTS translated into Turkish were collected in a 5-dimensional structure, as in the original scale. The Cronbach's Alpha reliability coefficient was found as .905, and the composite reliability value as .872. The Cronbach's Alpha reliability coefficients of sub-dimensions of GTS-Turkish version were found to vary between .796 and .841. According to the results of the item-total correlation for item discrimination, it was determined that the item discrimination of the scale was at a good level. These findings indicated that, the Good Teaching Scale-Turkish version, which consisted of 35 items, is a valid and reliable measurement tool for measuring the university students’ perceptions of good teaching in Turkey and the perceived characteristics of good teaching in higher education.