[Work curve characteristics of preschool children by Uchida-Kraepelin psychodiagnostic test].

The work curve characteristics of preschool children aged five and six, were examined by Uchida-Kraepelin psychodiagnostic test; Scores were the amount of work, the effect of rest, PF profile fluctuation score and the relations among them. Subjects were 476 kindergarteners aged five and six. The results were as follows: The amounts of work increased with age, and girls' amount of work was larger than that of boys. The effect of rest was seen in the children aged six, but not in the children aged five. PF score tended to decrease as the amount of work increased. There was a negative correlation between the effect of rest and PF score.