2019 年 17 巻 2 号 p. 139-146
Although it is important to prepare for earthquakes to live in Japan where earthquakes happen more frequently than any other countries, many Japanese do not prepare against earthquakes in everyday life. Previous studies have revealed that the main effects of cognitive factors that determinate the precautionary behavior toward earthquake; the perceived severity of a threatening event, the perceived probability of the occurrence, the efficacy of the preventive behavior, the perceived self-efficacy, and perceived cost to response. However there are no studies that examine the mediating factors of them. Guided by theories of motivation (e.g., Higgins, 1997), we show that the responsibility drives the effects of cognitive factors to precautionary behavior toward earthquakes as a mediating factor. We test this hypothesis in 2 questionnaire-based surveys. In study 1, a questionnaire-based survey to residents (N = 101) living around Kansai area was administered, and in study 2 we confirmed the duplicability of results of study 1 by a secondary analysis of national census (N = 1,839), randomly sampled from a wide range of age group of population cost. Though the perceived cost had impact on precautious behavior negatively, the perceived responsibility mediated the negative effect of the perceived. Discussion considers a possibility that a perceived responsibility mediates effects of cognitive factors on prepared behavior toward earthquakes.