Before revision: Pedology in the Soviet Union In Imperial Russia a prominent developer of the field was Aleksandr Nechayev ( Александр Петрович Нечаев) in St. Petersburg, who in 1901 created the laboratory of experimental pedagogical psychology.
After revision: Pedology in the Soviet Union In Russian Empire a prominent developer of the field was ill|Aleksandr Petrovich Nechayev|ru|Нечаев, Александр Петрович in St. Petersburg, who in 1901 created the laboratory of experimental pedagogical psychology.