标题：424 場面集団活動の一考察(11.集団力学・学級集団,日本教育心理学会第5回総会部門別研究発表要旨・討論の概要) [in Japanese] 424 A study on group-situation activity(11.Group dynamics and classroom groups, PROCEEDINGS OF THE FIFTH ANNUAL CONVENTION OF JAPANESE ASSOCIATION OF EDUCATIONAL PSYCHOLOGY PAPERS AND THE SUMMARIES OF DISCUSSIONS) [in Japanese]
