Theoretically, people who deny that IQ is real or important shouldn't be at all worried by these findings...http://www.npr.org/sections/health-shots/2017/03/28/521644395/study-suggests-childhood-exposure-to-lead-can-blunt-iq-for-decades …
that's called a transracial adoption study, and it's been done many times.
7:11 AM - 29 Mar 2017
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