The aim of the article is to present and analyze the child-centered ideas of the Central and Eastern European scholar S. Baley. The scholar comprehensively researched a child, using his knowledge not only in psychology and pedagogy but also in medicine as well. The article presents S. Baley"s child-centered ideas i. e.: he considered a child as a personality with his own interests, willing and fears; he regards the child using psychology of a mature person; the scholar emphasizes on the adaptation of educational and teaching process to the child"s needs and interest; education of children should be based on their needs and interests, taking into account intellectual and physical abilities as well as their individuality; the scholar emphasized on the adaptation of teachers and educators for features of child"s psyche. The article presents the comparison of ideas and views of S. Baley with other famous scholars who regarded a child as a central object.