Abstract:
The study mainly focuses on assessing the level individuals’ job performance and whether the groups of a demographic factor have mean difference between them. The main objective of this study is to provide a basic idea of using T-test and ANOVA with Tukey’s Post Hoc test. A quantitative survey design is employed, whereas 450 individuals were selected from all fifteen Divisional Secretariats in Jaffna District by using stratified-random sampling method. However, the results also show that demographic variables gender, and designation level have no mean differences between the groups of each of them, except the age group, which implies that there is significant age-group based difference in job performance of employees in the Divisional Secretariats in Jaffna District. Therefore, the study recommends that demographic factors should be considered when managing the employees’ job performance.
