Class Size Difference in the Five-year Trajectories of Elementary School Students' Japanese-language Standardized Achievement Scores
Year: 2025
Type: article
Study design: Observational Study
Abstract: This study examined the effect of class sizes on differences in the trajectories of elementary school students' long-term Japanese language achievement by analyzing panel data composed of standardized achievement test scores at five points from around the end of first grade to around the end of fifth grade. The data for 103 schools, 162 classes, and 3,460 students were analyzed. Multilevel analysis with a model postulating three levels (student and time, student, and school) was conducted. The results suggested that smaller classes are advantageous for students' Japanese language achievement trajectories.
Source: Educational Studies in Japan
Author: Koyo Yamamori
Institution: Nihon University
Language: English
Subfield: Education
Field: Social Sciences
Domain: Social Sciences
SDG: Quality education
Open Access status: diamond
OpenAlex ID: W4411167090
