Abstract Introduction: Academic procrastination can affect all areas of students' lives, which deserves a lot of attention. There is a need for a scale based on which psychological conclusions can be based and the knowledge and measurement of this structure can be improved. This research was conducted with the aim of investigating the psychometric properties of McCloskey's academic procrastination questionnaire in the student community of Kerman University of Medical Sciences. Methods: The method of this research was descriptive. The statistical population was all students of Kerman University of Medical Sciences. From this population, 402 people (220 female and 192 male) were selected as samples by multi-stage random sampling method. Construct validity was done based on confirmatory factor analysis, and internal consistency reliability and consistency reliability of the questionnaire were calculated using Cronbach's alpha coefficient and retesting in all students and by gender. SPSS-26 and AMOS-24 software were used for data analysis. Results: The findings related to the determination of the psychometric indicators of the academic procrastination scale were reported in three sections: validity, validity and standardization. In order to improve the fit of the single-factor model, items 1, 11, 14, 16, 24 and 25 were removed due to factor loadings less than 0.3. The chi-square goodness of fit index was obtained after modifying the model. Therefore, the single-factor model of academic procrastination tool was confirmed in students. According to the significance of the test (P < 0.001), the current scale has an acceptable and appropriate reliability of temporal stability or repeatability. Conclusion: The results showed that this questionnaire has adequate validity and reliability after removing 6 items and can be cited by researchers. Keywords: procrastination, students, accreditation, Mc Closkey version
poormoosa H. Examining the psychometric properties of McCloskey's academic procrastination questionnaire in the academic environment. Educ Strategy Med Sci 2025; 18 (2) :79-88 URL: http://edcbmj.ir/article-1-3128-en.html