Explaining the Model of Academic Performance Based on Academic Motiva-tion, Achievement Goals, Academic Self-Efficacy, Mediating Academic En-gagement in Secondary School Students

The purpose of the present study was to explanation the model of academic performance based on academic motivation, achievement goals and academic self-efficacy with the mediation of academic engagement of secondary school students in Tehran city. The research was practical and the method was correlational with structural equation modeling. The statistical population was all second-grade students, who were selected by multi-stage cluster sampling(470). The research instruments were the Miguel et al. Achievement goals Questionnaire, Wallarand et al. academic Motivation Questionnaire, Morris academic Self-Efficacy Questionnaire, and Pintrich et al. the Motivation Strategy Questionnaire for learning. The data were analyzed using correlational methods and structural equation modeling. The results showed that model of research variables had a favorable fit. In the assumed model, academic motivation with academic performance is mediated by academic engagement, has a complete effect and direct effect and indirect effect is non-significant. The goals of progress with academic performance with the mediation of academic engagement had a complete and direct effect and a non-significant indirect effect. The effect of academic self-efficacy with academic performance with the mediation of academic engagement had a complete effect and a significant direct effect, but the indirect effect is not significant. The effect of academic self-efficacy was significant with academic performance at the 5% level. The results showed that the variable of self-efficacy has a significant effect on academic performance and can explain 35% of the variance of academic performance.