Note. Standard deviations are in parentheses. Highest scores that match
with blood type characteristics, and p < 0.05 are
highlighted in bold. * p < 0.05 after the Bonferroni’s
correction.
On question item “Q2 Do you think blood type and personality are
related?”, 8.3% of the respondents answered “strongly related”,
40.6% answered “somewhat related”, 24.6% answered “a little
related”, 18.0% answered “not related at all” and 8.5% answered “I
don’t know”. On question item “Q3 Do you know the characteristics and
compatibility of blood types?”, 9.9% answered “I know well”, 54.6%
answered “I know some”, 23.5% answered “I know a little” and 12.0%
answered “I don’t know at all.”
In Survey 2’s ANOVA result (Table 2), 11 of the 12 items gave the
respondents’ image of blood type and were statistically significant, or
9 items after the Bonferroni’s correction. The magnitude of the
difference: partial η2 = 0.053 at the maximum
and 0.019 at the average (the average of Survey 1 and 2 combined was
0.017), thus, the effect sizes were intermediate between small and
medium.