- Joined
- Oct 23, 2021
(Zakharia et al. 2009)Or are you just talking about black Americans... who are anywhere from 0-30% white on account of miscegenation?
Figure 3 from a recent Admixture Study that largely replicated figures for ancestral makeup and deviations from a older paper. (Zakharia 2009)
- The Black sample was, on average, 18.7% European in ancestry.
- The White sample was, on average, 98.6% European in ancestry.
- For the Black sample, 11.7% percentage points of European ancestry is 1 standard deviation of European ancestry.
- The effect size for European ancestry on IQ is r = 0.086.
(Lasker, Pesta, Fuerst, & Kirkegaard 2019)