Three stages in the development of educational psychology in pre-revolutionary Russia are singled out: the first (50-70-ies of the XIX century) -theoretical grounding; the second (70-ies - beginning of the XX century) - organization of concrete studies, appearance of basic trends in research; the third (from the beginning of the XX century until the October Revolution) -theoretical and methodological studies, development of experimental institutions, first organizational measures and establishment of first organizational bodies.