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I get the feeling everyone here is tired of IQ threads, but a friend requested good scientific sources on the heritability of IQ and on differences in national average IQ.
I can find all sorts of papers online but I'm wondering if there are some larger review papers out there or some classic resources for him to read.
Cheers
I can find all sorts of papers online but I'm wondering if there are some larger review papers out there or some classic resources for him to read.
Cheers