The Effect of Role Conflict, Job Insecurity and Pessimism on The Job Performance of the Employees of Pasteur Institute of Iran with the Mediating Role of Knowledge Concealment and Transformative Leadership

The main purpose of this research is to investigate the effect of role conflict, job insecurity and pessimism on the job performance of employees with the mediating role of knowledge concealment and the moderating role of transformative leadership.

The current research is applied from the point of view of the goal, and from the point of view of the method, from the type of contextualization (correlation), and from the point of view of data collection, it is of the type of field research, with a standard questionnaire tool and Cronbach's alpha value is equal to 0.855. The statistical population of this research includes all the employees of the Pasteur Institute of Iran in the number of 765 people, 256 of whom were selected and studied using Cochran's formula by stratified random sampling.

Using structural equation modeling with the help of Smart PLS software, the findings showed that role conflict, job insecurity, and pessimism have a direct effect on hiding the knowledge of the employees of Pasteur Institute of Iran. Hiding knowledge has the opposite effect on the job performance of the employees of Pasteur Institute of Iran.

The results of the research showed that the lack of job security has an effect on hiding the knowledge of the employees of Pasteur Institute of Iran with the moderating role of transformational leadership. Also, between the role conflict on job performance and the mediating role of knowledge concealment; lack of job security on job performance with the mediating role of knowledge concealment; pessimism about job performance with the mediating role of knowledge concealment; The conflict between the role of hiding knowledge and the moderating role of transformational leadership and pessimism over hiding knowledge and the moderating role of transformational leadership were not observed.