The causal model of academic achievement based on the hardiness and perception of the classroom environment with the mediation of academic engagement

Academic achievement is one of the indicators of the academic success and development of societies. The aim of this study was to explain a model of causal prediction of students' academi achievement based on hardiness and perception of the classroom environment by mediation of the academic engagement. Research method was correlation. A sample size of 300 of all (1411) male and female students of the third grade in empirical science course of high school in Dezful in 1393-94 was selected using multi-stage random sampling. They answered Kobasa.'S hardiness questionnaire (1994), Reliability =0/68,Index fit (GFI=0/93, RMSEA=0/074), Gentry, Gable and Rizza perception of the classroom environment (2002), Reliability=0/81, (GFI=0/93 (RMSEA=0/063) and Pintrich & De Groot academic engagement (1994), Reliability=0/90, (GFI=0/94, RMSEA=0/058).The data analyzed by structural equation modeling. Results showed that model, was good fit by data. Direct effect of the academic engagement on academic achievement was0/32, perception of the classroom environment on academic engagement was 0/758 and Indirect effect of the perception of the classroom environment on academic achievement by mediation of the academic engagement was0/24, which all (p<0/0001) were meaningful. Effect of the hardiness on academic achievement was -0/29 (p<0/0001) and meaningful. On the whole, hardiness and perception of the classroom environment explained16/7% of the variance of academic achievement and perception of the classroom environment explained 57/9 % of the variance of academic engagement. Thus, it is necessary that planners and teachers provide opportunities for activating and benefiting from challenging assignments for students.