A Meta-Analysis of the Relationship Intra-School Factors and Academic Performance of Iranian Learners

Document Type : Research

Authors

1 Ph.D. of Educational Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran.

2 Professor, Department of Education, Azarbaijan Shahid Madani University, Tabriz. Iran.

10.30473/etl.2026.73436.4329

Abstract

The aim of this research is a meta-analysis of the relationship between intra-school factors and academic performance. The method of this research is meta-analysis. The statistical population was the entire research published in the country between 2011 and 2021. For gathering data, was used the Mesrabadi research proposal checklists (2010). 376 effect sizes were investigated based on inclusion and exclusion criteria on 278 primary researche. Sensitivity analysis, funnel plot, fixed and random effects models, and heterogeneity analysis with CMA software were used for data analysis. The findings indicated that the mean of the total effect of the studies was 0.288 for the fixed effects model and 0.321 for the random effects model. As the effect sizes were heterogeneous, the role of moderator variables was examined. The results indicated that the effect size of educational factors on academic performance is greater than other intra-school factors. Also, the results indicated that in the educational factors, the effect size of the type of education on academic performance is greater than other factors. The results of the study showed that intra-school factors had a significant effect on academic performance based on Cohen's criterion (1988), the effect size of this relationship was found to be average. Considering the obtained results providing programs to introduce intra-school factors and their impact on students' academic performance is a necessity that should be given more attention than ever before.

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