Abstract
Estimation of students' perspective in educational activity requires diagnostic of intelligence and its relation to the level of motivation to realize their potential and possibilities.Psychodiagnostic research was conducted in order to study developmental dynamics of changes in achievement motivation of students in process of educational activity.The research involved 181 students of the 7 th -8 th grades; repeated experiment (in a year) involved 181 students of the 8 th -9 th grades.Research revealed that students with high level of intelligence and high level of achievement motivation, reach high academic success.