This survey research has a purpose to study the personality of students at the Mechanical Engineering Department Faculty of Industrial Education Rajamangkala University of Technology Phranakhon. The improvement of test questionnaire 16 PF (Sixteen Personality Test ) of Raymond B. Cat Resort from the total of 108 students who using a tiered Iandscape sampling (Stratified Random Sampling). Students from Mechanical Engineering. Tools used in evaluation of research data using a questionnaire and data analysis methods.Calculate overall percentage of arithmetic mean (arithmetic mean) on median comparisons t-test and F-test of students personality areas. Research results can be summarized as follows. 1. Personality with a teacher of mechanical cngineering students by age showed that all of the moderates.The average of the maximum a person is sincere and guileless disclosed. 2. Personality with a teacher of mechanical engineering students by age is found that the older students have different personality. And students over 27 years pf age are not timid than courageous. Students aged belwecn 23-27 years. 3 Personality on a teachers student in meehanical engineering disciplines. Ievels by an average score found that students with different rate lcvcls. It is a personality who loves to collect dissociation. Different found that students with grade lowcr than the2.00 level as people like humility. Different Found that students with grade between2.01 to 2.99 4.Personality on a teachers student in mechanical engineering disciplines. by classs year study.shows.students leam in diflcrent class years are.Pcrsonality is about people like humility and Dissociate diflerent. 5. Personality with a teacher of mcchanical engineering students by class year to find a more different pair were found about a person who loves to collect. Dissociate it. Students who study in year1 class who likes to collect. Dissociate more. Students studying in year 3 th but this year found that about understanding Students learn in class at 1year in higher than intellect. students studying in year 3th years.

This survey research has a purpose to study the personality of students at the Mechanical Engineering Department Faculty of Industrial Education Rajamangkala University of Technology Phranakhon. The improvement of test questionnaire 16 PF (Sixteen Personality Test) of Raymond B. Cat Resort from the total of 108 students who using a tiered landscape sampling (Stratified Random Sampling). Students from Mechanical Engineering. Tools used in evaluation of research data using a questionnaire and data analysis methods. Calculate overall percentage of arithmetic mean (arithmetic mean) or median comparisons t-test and F -test of students personality areas. Research results can be summarized as follows. 1.Personality with a teacher of mechanical engineering students by age showed that all of the moderates. The average of the maximum a person is sincere and guileless disclosed. 2. Personality with a teacher of mechanial engineering students by age is found that the older students have different personality. and students over 27 years of age are not timid than courageous Students aged between 23-27 years. 3. Personality on a teachers student in mechanical engineering disciplines. Levels by an average score found students with diffcrent rate levels. It is apersonality who loves to collect dissociation. Different Found that students with grade lower than the2.00 level as people like humility. Dissociate more. Students with a grade between 2.01 to 2.99. 4.Personality on a teachers student in mechanical engineering disciplines. By class year study. Shows students learn in diflerent class years are. Personality is about people like humility and dissociate different. 5. Personality with a teacher of mechanical engineering students by class year to find a more different pair were found about a person who loves to collect. Dissociate it. Students who study in year 1 class who likes to collect. Dissociate more. Students studying in year 3rd but this year found the about understanding. Students learn in class at 1th year is higher than intellet. Students studying in year 3rd years.

This action research has a purpose to study the personality of students at the Industrial Engineering Department Faculty of Technical Education Rajamangkala University of Technology Phranakhon. By using the Peter Lauster personality test this research compares the students personality before and after taking suggestion test on personal development. The subject of test consists of 13 students selected purposive selection from students at the first group of B.S. Technical Education (5-year curriculum) on Industrial Engineering Major. The collecting-data instruments are the Peter Lauters objective test namely the self report inventory and the authors questionnaires with check-list method. The data are analyzed by using the percentage and arithmetic mean. The research results are listed as the following: 1. The studentspersonalities before taking suggestion test on personal development in middle and low level are approximaicly 62.44 (largest group) and 6.88 percent respectively totaling approximately 69.32 percent. 2. The result from the personality test : the rather low and low level of self confident measurement are totally 76.91 percent. 3. After taking the suggestion test on personal development the good level is approximately 57.85 percent increasing about 27.18 percent relative to the same level before taking the suggestion test. On the other hand the low level is approximately 0.43 percent decreaing about 94.47 pecent relative to the same level before taking the suggestion test. 4. The findings from the interview and observation show that after taking suggestion test on personal development the most students not only improve their overall personalities but also build their self-confident as well as increase their well-adkist personalties resulting in the enhancement of their self-esteem.