Quote:
Originally Posted by troutman
I doubt IQ scores would vary so much by state. Wouldn't it be closer to a standard deviation across all populations?
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Only if you assume that IQ can't be natured and that it doesn't affect people's choice of residence.
Quote:
Originally Posted by Cali Panthers Fan
Considering how flawed IQ tests are to begin with, this is a pretty meaningless difference between states. Also, smaller states (population) will always skew a little higher in IQ compared to very large states. More data points means more regression to the mean.
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Higher, or lower, except that your premise is flawed. If everyone in each state was included in this study, statistical noise would be irrelevant even for small states.
What could be relevant is sample size (rather than state population), but a study based on SAT-IQ correlation surely has enough data to again reach a high degree of precision. Accuracy could still be off due to systematic errors.
I, for one, am not surprised that Massachusetts (home to Harvard, MIT, etc.) and North Dakota (home to the Bakken Formation) would rank highly.