There were three main purposes of this study. Those are 1) to clarify structure of altruistic attitudes, 2) to compare the levels of altruism, and 3) to compare the reasons of altruistic behavior among countries. In order to measure altruistic attitudes, we prepared eight situations in the form of a questionnaire. Total number of subjects was 5,134 junior and high school students in U.S.A., China, Korea, Turkey, and Japan. The results are summarized as follows: 1) Factor analysis indicated that structure of altruistic attitudes was almost the same among countries except for the Chinese youths. 2) Regardless of the situations, Chinese male students had a tendency to help others only when they were acquaintances. 3) As for the reasons for the altruistic behavior, Japanese youths considered that emotional reasons were more important than rational reasons, whereas the youths in other countries emphasized the importance of rational reasons. 4) With these results, we concluded that altruistic attitudes were considerably different from country to country.
