## Direct estimate of between group heritability with estimated polygenic scores

A while ago, I had an idea for a direct estimate of the between group heritability from polygenic scores. The idea is based on the old DeFries (1972) paper, which had the following equation: where h2B is the between group heritability, h2W is the within group heritability, t is the intraclass phenotypic correlation, and r […]