I've read that genes explain about 50% of the intelligence. Does anyone know: Did these studies regard the fact that good genes for intelligence presuppose good genes of the parents and they determine the environment in which a child grows up too, so from that point of view genetics might explain more than 50% of intelligence.
It's probably a safe assumption that there exists some number of people dedicating their careers to the study of intelligence who are able to consider potential heritability confounders you can think up in five minutes.
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