Purpose: The aim of this study was to investigate the effect of self-efficacy and optimism on job performance with the mediating role of work engagement.
Design/ methodology/ approach: The study in terms of purpose is practical and in terms of methods of data collection is survey from group of descriptive researches. The statistical population is of all experts employed in the Deputy of Management Development and Resources of the Ministry of Economic Affairs and Finance is 200 people, the sampling method is simple random and the number of sample is 80 people. The tool of data collection is questionnaire of self-efficacy provided by Scheier et al. (1982) and questionnaire of optimism provided by Carver et al. (2010) and questionnaire of work engagement provided by Rich et al. (2010) and questionnaire of job performance provided by Patterson (1990). Data analysis was performed with Structural Equation Modeling approach (SEM) with partial least squares method through Smart-PLS 3 software.
Research Findings: The findings of this study showed that proposed research model is validated and self-efficacy and optimism led to work engagement and this affects job performance and work engagement variable plays a mediating role in the relationship between self-efficacy and optimism and job performance.
Limitations & Consequences: The limitation of this research is that it was conducted in a specific organization, which makes it difficult to generalize it to other organizations.
Practical Consequences: The output of this research, which has been conducted for the first time, can be effective in predicting the actions of managers towards employees.
Innovation or value of the Article: Unlike previous researches that investigated two or three variables out of the total variables of the current research, this research has simultaneously investigated four variables.