The reason I detest IQ as our measure of intelligence is that it is pretty good. It would be far better if it was either absolutely amazing or obviously wrong. We can’t afford pretty good. A pretty good metric for cognition which some say is great can be a true social nightmare.
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Ah ok, so a psychometrician would control for all those things.
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basically - cuz g isn’t like a sum of lots of different ways of being smart, it’s a factor that explains why they covary to get more specific than that, easiest to read about EFA or PCA to grasp the idea
End of conversation
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Beauty!
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Have they tried fitting the population base component data to nonlinear manifolds? I would expect linear PCA to leave some interesting structure on the table
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