Abstract
The purpose of the present study is to make a critical comment on theoretical bases of "experimental small group" approach and sociometric approach which have been very common for studying group process of pupils in a classroom, and to make clear whether these approaches will be effective for the study of the process from educational-psychological points of view. In this paper, theoretical background of "experimental small group" method, limits of the method to studies on actual classroom group process and several conditions for effective application of the method were discussed. A discussion on educational-psychological significance of sociometric approach to pupils' group process in a classroom was also made.
