Abstract:
The purpose of this study was to investigate the impact of big five personality
dimensions on job performance of the employees of Postal Department in Sri Lanka. Job
performance was considered as the dependent variable and dimensions of the big five
personality model such as Extra version, Agreeableness, and Openness to experience,
Neuroticism and Conscientiousness were considered as the independent variables. The
sample was 91 employees in the Postal Complex of Kandy, selected according to stratified
random sampling method. A questionnaire was used to collect the data from employees. The
hypotheses were tested using two methods. The Pearson Product Movement Correlation
Coefficient (r) for test the relationship between two variables. The unstandardized coefficient
in multiple regression models also used for test the relationship between two variables.
According to the results of the correlation analysis illustrated that there was a strong positive
relationship between Conscientiousness and Job performance. As well as there were positive
relationship between Extra version and Job performance, Agreeableness and Job
performance and Openness to experience and Job performance. There is a negative
relationship between Neuroticism and Job performance.
