This article presents the results of theoretical and long-term empirical study of adaptive readiness of secondary school students. Students (N = 83) and class teachers (N = 3) participated in the longitudinal study. The use of the following complexes of psychological and pedagogical instruments allowed to study the dynamics of adaptive readiness of students with initially high and low levels: «Chart of monitoring students’ adaptiveness and effectiveness of their learning activities» by E. S. Eskina, T. L. Bolbot, «Intellectual abilities test for children» by K.
