Abstract
Jobs provide a sense of accomplishment and identity. Job satisfaction has an impact on task performance and both are important to industries and organizations because their performance and productivity depend on the employees' satisfaction and performance. The objective of this study was to investigate the relationship between job satisfaction and task performance among 450 employees of Behzisty organization in Central Provinces of Iran. The study also looked at the influence of gender, age, education, and tenure on the relationship between job satisfaction and task performance. Instruments used to collect data were Job Description Index (JDI), Task Performance (supervisors' ratings) and the Demographic questionnaires. Descriptive and inferential statistics were used to analyze the data. The results found that there was a significant relationship between job satisfaction and task performance. It was also shown that gender and education moderated the relationship between job satisfaction and task performance while age and tenure did not moderate the relationship between job satisfaction and task performance. The results have significant implications on the policies of human resource as well as organizations in Iran.