An Investigation on the Validity and Reliability of the Evaluation form of Lecturers’ Instruction Quality in Sabzevar University of Medical Sciences with an Emphasis on Teaching Dimensions

Abstract

Background: Measuring instruments used for the planning of any study should also be evaluated. Aim: The present study aimed to investigate the quality of instruction an evaluation with an emphasis on teaching dimensions. Methods: In this cross-sectional study the population was 250 students of Sabzevar University of Medical Sciences who were selected using simple random sampling. Data collection tool for evaluation the quality of instruction was the one used by Betoret and Tomas. To evaluate the validity and reliability of the method, determining the validity method and CVR, CVI, structure validity using Amos software and Cronbach's alpha coefficient was used. Data were analyzed using SPSS 15 software and Amous 21. Results: For face validity of the evaluation forms some changes were applied on the items and in content validity 7 necessary items has been added to other items. Finally, 20 items formed the evaluation questions which included 6 items related to presentation skills, 4 items related to classroom management, 5 items related to educational capabilities and 5 items related to communication skills. CVI value was equal to 0.82 and CVR was 0.88 respectively. Alpha levels obtained using Cronbach's alpha was 0.92. The final results of confirmatory factor analysis revealed numerical values as follows: Chi-square degrees of freedom equal to 0.418, RMSEA <0.001. IFI = 1, 0PRATIO =0.956 and these values showed the approved items forming each of the structures. Conclusion: Therefore, based on teaching from Betoret and Tomas perspective, in this study, a questionnaire was developed according to the results contains the necessary reliability and validity.