Nazila Karimi - PhD student of management, Isfahan University, Isfahan, Iran
Seyed Ali Siyadat - Associate professor of management, Isfahan University, Isfahan, Iran

Introduction: The current research investigates the predictors of work motivation through job characteristic in staff members of educational vice chancellor of Iran’s ministry of education.Materials and Method: Data were collected from the 200 staff members by using simple random sampling method. Job diagnosticsurvey questionnaire (Hackman & Oldham, 1975) was employed for assessment of job characteristics and Work Motivation and JobSatisfaction Scale (WMJSS) were used for assessing participants Motivation toward work tasks. Results: Findings revealed that there is a positive and significantrelationship between job characteristics and working motivation. The multiple regression results also revealed that WorkingMotivation is significantly predicted by job characteristic. Also all job characteristics sub variables includes skill variety, task identity,task significance, autonomy and feedback were meaningfulpredicators of work motivation, internal motivation, general satisfaction and growth satisfaction. The highest variance isexplained by skill variety and the lowest by autonomy. Conclusion: Teachers and staffs who were satisfied with their job had high motivation for working properly and vice versa.

work motivation , job characteristic , skill variety , task identity , task significance , autonomy and feedback , internal motivation , general satisfaction , growth satisfaction