ABO Blood Type and Personality Traits: Evidence from Large-scale Surveys in Japan

Abstract

<p>The relationship between blood type and personality has long been one of the more challenging issues of scientific studies. Several large-scale surveys were conducted to address the issue, and some of them had shown statistically significant associations. This study analyzed data from <b>two large-scale surveys</b> (Survey 1: N = 1,000, Survey 2: N = 1,859) to examine the relationship between blood type and personality. ANOVA results indicated that 17 of the total 20 <b>respondents’ own blood type characteristic question items scored higher as “fit to my personality”</b> than the averages of the other blood types. In both Survey 1 and 2, the same differences in scores were found in the groups who reported no blood type personality knowledge, although the values were smaller. Thus, we observed a <b>clear and significant relationship</b> between blood type and personality in large-scale surveys.</p><br>