Heritability question. Suppose we have a bunch of IQ = 150 people from a population of mean IQ = 100 (SD = 15) people.
We can get an E[IQ] for the marooned population's first generation of offspring. Can we get E[IQ] (100=original pop) for later generations?
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It seems like the answer has to be "asymptotically approaches 100" (which seems wrong?) or "cannot answer without more information. (???)
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Immediate partial reversion to mean after 1 generation, then slow decline as mutational load increases to normal levels.
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