عنوان مقاله [English]
The purpose of this research was the comparison of academic achievement motivation in the in Elementary, first session high school, and second session High School Girl Students. In this research, the statistical society was all of the girl students in Tehran. To this study 297 girl student of Tehran schools was selected by multistage cluster sampling way. The sample consisted of 102 students of elementary, 104 students of first session high school, and 91 students second session high school grade. Students answered to Harter’s academic achievement motivation scale. Validity and stability of this test were analyzed by Bahrani and Razaviyeh (2009) and Alpha coefficient for intrinsic and extrinsic motivation were 0/85 and 0/69. Factor analyses of the test, indicates of constract validity. Data of this research, were analyzed by ANOVA test and Scheffe Post Hoc test. Analysis of the data showed that Academic intrinsic motivation in elementary school students was significantly more than other grades. So, the intrinsic motivation reduces from elementary school to first session high school and it decreases insignificantly in second session high school. Academic extrinsic motivation in first session high school, and second session high students was significantly more than elementary school students. According to this research, the intrinsic motivation decreases from elementary school to first session high school, and it reduces insignificantly in second session high school.