عنوان مقاله [English]
The present research investigates the causal relationship between psychological capital and academic engagement by mediating the motivation of the achievement of female students studying in the first grade of high school. The statistical population of research includes all female students studying in the first grade of high school in Bojnourd that they are studying in the academic year of 2014- 15 . Among whom 150 were selected by cluster random sampling. The used instruments include the questionnaire of psychological capital, the questionnaire of Hermann's motivation of development and the questionnaire of Tinio's academic engagement. The type of present research is correlation and it was carried out using structural equation modeling (SEM).The results of structural equation modeling showed that psychological capital has a significant positive effect on the motivation of progress and academic engagement; also, the motivation for progress on academic engagement in a series of chain relationships has a significant positive effect. Also, the results showed that psychological capital had a significant positive effect on academic engagement indirectly through the motivation of progress. Overall, the results of this study showed that psychological capital had a significant positive effect on academic engagement directly and indirectly.