Design and validation of a scale for measuring the quality of e-learning of university professors from the students' point of view

The present study was conducted with the aim of designing and validating a scale for measuring the quality of virtual education of professors from the students' point of view. This research is an applied research in descriptive-correlative manner. The statistical population of this study was all students of Bu Ali Sina University of Hamadan who participated in the evaluation of professors. The statistical sample size was 500 people who were selected by relative random sampling. The 15-item e-learning quality model was designed in five dimensions: educational strategies, educational content, evaluation activities, interaction and responsiveness, and effectiveness; Then, using statistical techniques of content validity ratio and confirmatory factor analysis, tool validity was reviewed and Finally, Cronbach's alpha method was used to determine the reliability of the tool. The results showed that the structure of e-learning quality model according to the content validity ratio (0.76) and confirmatory factor analysis that the value of goodness-of-fit index (GFI) is equal to 0.967, comparative fit index (CFI) is equal to 0.994 and adjustmented goodness-of-fit index (AFGI) equal to 0.924 and root mean square error of approximation (RMSEA) equal to 0.052 was confirmed. The instrument also had good reliability with total Cronbach's alpha values (0.988).