That doesn’t show the absence of a gradient, because they’re reporting, if I’m understanding the description right, a PISA-aggregate of 12 provinces; the only other scores are places you’d expect to be outliers and unaffected by any evolution (Shanghai, Hong Kong, etc). There is a map, but:
all perform well above average according to stats from a Chinese online IQ testing website.
Yeah… Plus, note the striking East-West gradient. So this map is serving more as a measure of economic development and Internet access than a random sample demonstrating lack of gradient.
According to Wikipedia, the genetics of the Han Chinese is… complicated.
I’m not surprised. The Han have been expanding relentlessly for a long time.
That doesn’t show the absence of a gradient, because they’re reporting, if I’m understanding the description right, a PISA-aggregate of 12 provinces; the only other scores are places you’d expect to be outliers and unaffected by any evolution (Shanghai, Hong Kong, etc). There is a map, but:
Yeah… Plus, note the striking East-West gradient. So this map is serving more as a measure of economic development and Internet access than a random sample demonstrating lack of gradient.
I’m not surprised. The Han have been expanding relentlessly for a long time.