Paper Title
The Factors for Developing Trainers in The Auto Part Manufacturing Factories (AMF)in Amatanakon Industrial Estate, Cholburi Province

Abstract
The purposes of this research are to find out the factors for developing trainers in the auto part manufacturing factories (AMF) in AmataNakon Industrial Estate, Cholburi Province. Population in this study included 148 operators to complete the questionnaires and 10 trainers to provide the information on the interview. The research statistics consisted of percentage, mean, standard deviation and step-wise multiple linear regression analysis. The analysis of the training model revealed that: The research result showed that the development factors of trainers in AMF consisted of 3 main factors and 8 sub-factors: 1) knowledge competency with 4 sub-factors; organization and flow, working experience, task and behavioral analysis and organizational awareness which could predict the success of the trainers at 55.60%. 2) Skill competency consisted of 4 sub-factors, organization and flow, organizational awareness, task and behavioral analysis and development of emotional quotient. These 4 sub-factors could predict the success of the trainers in skill aspect 55.90%. 3) The attitude competency consisted of 4 sub-factors, organization and flow, the learning intention, computer competency and education psychology. In conclusion, these 4 sub-factors could predict the success of the trainers in attitude aspect 58.50%. Keywords - The Development Factors, Trainers Development, Trainer Competencies, Auto Part Manufacturing Factory (AMF), Amatanakon Industrial Estate, Cholburi Province