Abstract:
This research was to study personal factors of employees and motivation factors related to development of job performance of production workers in a basic lubricant production factory in Rayong Province by using questionnaires as a research tool. The population of the study consisted of 110 production workers in a basic lubricant production factory in Rayong Province. The data were analyzed by means of percentage, mean, standard deviation. The hypothrses were tested through the Independent Sample t-test, One-way Analysis of Variance and Multiple Linear Regression at the reliability level of 95 percentages. The study revealed that differences in age, marital status, education, seniority, working position and average monthly income made no difference to development of job performance of the production workers. External motivation factors in policies and organization administration of the development of job performance had a positive correlation or were in line with the development of the production workers’ knowledge in a basic lubricant production factory in Rayong Province. An external motivation factor for working stability had a positive correlation or was in the same direction with the development of the production workers’ visible working skills in a basic lubricant production factory in Rayong Province.
Internal motivation factors for work achievement and professional growth had a positive correlation with job performance development of the production workers’ knowledge in a basic lubricant production factory in Rayong Province. Internal motivation factors for work achievement, professional growth, recognition, and likes/ dislikes of the job had a positive correlation with the job performance development of the production workers’ working skills in a basic lubricant production factory in Rayong Province.
