Investigation the mediating role of " role breath" on the relationship between the manager's performance in assessment centers, their cognitive abilities and autonomy with job performance

Job performance is optimal when worker skills fit with defined dimensions for job role. This is termed “role breadth”. The present study investigated this fitness. Also the relationship between autonomy، cognitive ability and performance in assessment centers with job performance according to role breadth was investigated. The research sample consisted of 139 managers of Isfahan governmental and private organizations who were selected using convenience sampling. For measuring these variables، simulation exercises in an assessment center، expanded form of Professional and Managerial Position Questionnaire (PMPQ)، General Aptitude Test Battery (GATB)، Job Characteristics Inventory (JCI) and organizational performance evaluations were used. Findings indicated that autonomy، cognitive ability، performance in assessment center، and role breadth variables are predictors of job performance and role breadth is a mediator. According to findings، increasing in autonomy of managerial jobs and selecting of volunteers with high cognitive ability through assessment centers for managerial jobs to maximum performance is recommended.