What would the average IQ difference of black and white US citizens be if we perfectly controlled for environment?
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>1 IQ point
<=1 IQ point
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1 IQ point is so small, even this effect https://twitter.com/RichardHanania/status/1724890161228685463 would cause such a thing, under the assumption that there were 0 genetic differences in the 1970s.
This study from the late 1970s https://www.sciencedirect.com/science/article/pii/0160289682900022?via%3Dihub would predict that the gap would increase by 0.8 points per generation. It's been >1.25 generations since the late 1970s, even if a generation is 35 years.
Conditional on there not being such a difference now, it's very likely there was a difference in favor of black people in the past.
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