Question

Heritability generally runs about ________ percent or a tad bit more for each of the big five trait dimensions. 50

Answer 1

I believe the answer is: 50%

The term heritability is used when the variation between traits is influenced by Genetics factor rather than environmental.
This percentage of heritability of big five trait dimensions come from the research on TWINS that are grown in a separate environment but somehow still display a lot of similar traits.