Meh, the "national average IQ score" is, by various sources, computed in different ways. Sometimes by proxy methods (looking at GRE scores, etc) sometimes by IQ tests. Is it exact? No. But Haiti has a low national IQ and China, much higher. You can guess the reason.
Meh, the "national average IQ score" is, by various sources, computed in different ways. Sometimes by proxy methods (looking at GRE scores, etc) sometimes by IQ tests. Is it exact? No. But Haiti has a low national IQ and China, much higher. You can guess the reason.