This study is to verify the effectiveness of clinical training program in teacher training. The Center of Educational Research and Practice provides variation of practicum opportunities for the graduate students in teacher training program, aimed to enhance their competencies as a teacher. Data was collected by structured interview using PAC (Personal Attitude Construct) analysis to verify difference between three groups of six graduates who had no participation, partial participation, and full participation. The results showed partial and full participation group had built confidence in their assessment skills and intervention skills for children as well as ability to search for methods dealing with children and parents in school settings. Additionally, the full participation group, who experienced providing individual social skills training to children, showed higher confidence by systemizing their experience of training program in practice, and formed positive self-perception about own skills. However, all group showed difficulty in modifying the theory and methods they had learned into their practices.