Abstract
The school children in isolated villages were examined in Japanese, mathematics, science and social studies by standardized achievement tests and by diagnostic tests for skill and adjustment to study.
Though the correlation coefficient between the achievement and the skill items is negligible, the correlation coefficient between the achievement and the adjustmental items is significant. Especially, the correlation coefficient between the achievement and the item of consciousness of the purpose of study is markedly significant as well as that between the achievement and the i tem of family environment of study.
