Developing a Model to Explain and Predict of Academic Achievement Based on Psychological Basic Needs and Motivation of Academic Achievement

The aim of this study is to examine the relationship between basic psychological needs satisfaction and achievement motivation with students’ academic achievement. Through correlation study of structural equation modeling selected 248 students in the first grade of secondary schools in Asadabad city by using cluster multiple stage sampling. To check tools validity, used exploratory and confirmatory factor analysis and to ensure reliability used Cronbach's alpha coefficient. The coefficient reliability of psychological basic needs questionnaire was 0.77 and for academic achievement motivation was 0.78. Results show that the model has goodness of fit with data. Direct effects of amotivation on academic achievement, autonomy on intrinsic and extrinsic motivation, and competence on the intrinsic and extrinsic motivation was significant. Total effect of competence on academic achievement was significant. Based on the developed model, psychological basic needs, and academic achievement motivation could have explain 33 percent of the variance of academic achievement. Therefor, it can be concluded that achievement motivation (amotivation) has mediating role between psychological basic needs, and academic achievement.