Abstract
Healthy development of human being is much owed to the ability to live harmoniously in changing environments in which he exists as a social being as well as mental and physical one.
In 1960, a new apparatus for describing“the Function of Concentration Maintenance (TAF)”was devised by Takakuwa. According to the results of the first experiment applying this method, it is revealed that the same person consistently draws similar TAF-curves under a certain fixed condition.
For the purpose of analysing further basic characteristics of TAF, the present study was performed in regard to the relationship between TAF and the other psychological observations such as I.Q. grades and Kraepelin Character types. The results obtained were as follows:
1) TAF indicated a close relationship with I.Q. determined by the intelligence test.
2) A significant correlation was noticed between TAF and the grouping by Kraepelin psycho-diagnostic test, especially by the level of“the work-curve.”
In summery, TAF showed a close relationship with a certain aspect of the mental disposition. This fact suggests that the TAF test is a useful means for testing occupation aptitude.
