Hereditarians were right again. For decades egalitarians have disrupted Lynn's ~70 IQ estimate for sub-Saharan Africa. The data were sparse, conditions questionable, samples insufficiently representative, tests possibly biased. All true, but the pattern was clear enough given the limitations. Now in 2025 PISA finally included more African countries.

Using their values and British natives (born in UK + both parents born in UK), these are the IQs:

Kenya 73
Zambia 71
Rwanda 71
Morocco 78