Meta-analysis of factors associated with the success of Iranian students in international studies TIMSS

The main objective of this study measured the effect of variables related to student achievement in TIMSS in Iran. The method of the present research was a meta-analysis type. The use of internal and external databases to find and report-research gathering all the action. Sample case studies included 13 studies from 2011 to 2023 across Iran. Data from the 13 studies using fixed effects model meta-analysis of the effect of Pearson's correlation coefficient was used. Statistical analyzes were performed using the second edition comprehensive meta-analysis software. Results showed that the overall effect size for the fixed effects model 0/605 to 0/597 against both random effects are significant at 0/001.The mean effect size for this study (0/605) can be moderate to large effect size of student achievement in TIMSS test interpretation. The quality of teaching teachers, gender, motivation, educational activities at school, school curricula, self-concept, socioeconomic status, the relationship between parents and schools, attitudes, teach thinking skills, school climate, school and family history with the success of students TIMSS there is a significant effect size.