2000 年 65 巻 535 号 p. 47-52
This paper studied the direct causality relation among environmental evaluation items. Several environmental research cases were analyzed using a statistical causality analysis method named graphical-modeling. This result shows the validation to suppose that people evaluate their environment hierarchically. It was also shown that this analysis method enables us to improve the hierarchical structures, which is provided before the research, and especially to grasp unpredictable causality relation.