@metal-brain said
I suppose a better education helps a person score higher on an IQ test simply from learning algebra. I don't think that is an accurate measure of real intelligence if education gave a person the edge.
Askanazi Jews are inbred though. They are like their own race in a way. I am open to the possibility that a higher IQ is fixed into their gene pool. That would be quite a r ...[text shortened]... ere intellectually superior to the Nazis. Since I have never heard of it before now, I am skeptical.
There's a lot of factors that go into brain development. Neglect and lack of stimulation through the first five years of life are liable to be as important to fluid intelligence as the entire education programme after that is. So it's possible that something to do with Jewish culture that affects child rearing is driving it. Unless you can identify a specific gene or gene combination then genetic explanations are highly speculative.
It can also be because of some bias in the sample that Peterson is relying on, he's approximate with his facts and it's not beyond the bounds of possibility that he read it in a popular magazine where the journalist didn't mention that his source was a study of results of IQ tests where the sample of Askanazi's happened all to be university students. It can be from a population survey and good information. So feel free to reserve judgement unless anyone here knows what the original research that this statement's based on is.
Regarding IQ tests in general, the claim is that the results are correlated with intelligence. So an IQ test result of over 130 implies that one is in the top 2.2% of the population for intelligence. I don't know how one would go about measuring the error for IQ tests.
Another Jordan Peterson claim is that IQ is not correlated with conscientiousness. I find this difficult to believe since any IQ test sensitive enough to give any kind of reliable answer is going to have about 50 questions. I imagine that people with low conscientiousness are going to start making mistakes because they do things like
not read the question carefully and become bored. Whereas conscientious people tend to read the question carefully and maintain focus. So I'd like to know what Peterson's basing that particular statement on.