Re: What Would David Say About This Remark?
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Well, do poor uneducated people generally scores lower than moderately wealthy (and upwards) educated people?
If so, what are we really meauring?
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First, reputable studies generally control for demographic differences as much as possible.
If your point is that income level affects IQ, so IQ can't be a good measure of something genetic, you may be confusing correllation with causation and what a correllation shows. If anything, I suspect the causal arrow would go the other direction in this case. It makes intuitive sense that smart people figure out how to make more money than less smart people. They then pass their smarter genes on to what end up being smarter kids who come from wealthier families.
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