@rebeccasear Humans are contradictory so it's not out of the realm of possibility

While IQ data for the developing world are lacking, the data for western countries is solid and those show differences, so it isn't unscientific to hypothesize and desire to test that the places of origin of the various population groups would follow a similar trend and correct me if I'm wrong, but traits aren't randomly spread across the population, but tend to cluster.