This project will develop longitudinal survey questionnaires for the purpose of understanding (comparing) the effects of the new and the old versions of curriculum guidelines for the junior high school on students’ performances and identifying the factors that affect the growth of students’ learning ability. Based on the students’ families and school environments, the surveys will correspond to emerging issues and, at the same time, respond to the curriculum reform. The project is going to design survey questionnaires for the students (for both subject matters and common survey), the parents, the teachers (for both subject matters and common survey), and the schools, respectively. Two review meetings will be held for each questionnaire. The pretest is schedule between September and October 2017. The formal investigation will be carried out in September 2018 (the last year using the old version of curriculum guidelines) and in September 2019 (the first year using the new version of curriculum guidelines) on the seventh graders. These two groups of students will be followed on their academic performances through junior high school. Two stage stratified cluster sampling will go as follows, the population is stratified based on the results of the Comprehensive Assessment Program for Junior High School Students. Schools and classes are then randomly selected. The questionnaires for the students, the parents, and the teachers (both homeroom and subject teachers) will be filled out with the selected classes; questionnaire for school is answered by the principles. The collected questionnaires will be analyzed with the reliability and validity tests first. Partial credit model will be used to estimate and equate the scale scores for each constructs, as well as the trajectories of students’ performances throughout the junior high school in the important constructs. Experts and educators can use the results as reference when making policies.