This study used 4th to 6th data of the primary 4th Panel of the Study of Gyeonggi Education to examine the factors that influence middle school students growth belief. In addition, we identified what factors differ according to whether or not they were innovative schools. To this end, this study used a hybrid method that combines both fixed and random effects. The main findings of this study are as follows. First, the factors that affect the growth belief of middle school students in both innovative and general schools were understanding of self career and discrimination experiences. Second, the variables that showed the significant difference between innovation and general schools were changes in household income and relationship with teacher. Third, although there was no statistical difference between the innovative schools and general schools, the achievement showed different influence on the belief of growth students. Finally, in general schools, their relationship with members of the school has a positive effect on their growth belief. Based on the above results, we proposed the evaluation of the policy of innovative schools and the supplementary task with policy.