لیلا بهمیی

The present research was conducted with the aim of designing and developing Job Fatigue Scale for Elementary school Teachers in 2024 employing both qualitative-quantitative data. In the qualitative phase, official documents and opinions from experts in this field were used to obtain the basic structure of the tool, and in the quantitative section, the basic structure of the tool was given to samples of three target communities in three stages to check the validity and reliability of the tool. The findings of the qualitative section showed 51 effective components in reducing job fatigue, based on which the initial pool was prepared with 81 items. The Holsti's coefficient of reliability was 0.864 and the results of the content validity investigation led to the removal of 29 items. Therefore, a 52-item questionnaire was formed based on the qualitative and quantitative data. Consequently, using factor analysis and Cronbach's alpha coefficient led to the removal of 7 items from the final form. Finally the structure of 45 items with 4 educational-psychological, psychological, behavioral-organizational and managerial-organizational factors was confirmed. Among the 4 factors affecting job fatigue, the educational-psychological factor took the first rank and then the psychological, behavioral-organizational and management-organizational factors took the second to fourth ranks respectively. In general, considering the validity and reliability of the developed model, it can be used to evaluate the level of job fatigue of primary school teachers.