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Source?

Because I'm calling bullshit on those figures, IQ tests are notoriously unreliable across cultural and societal boundaries.

Hell even across economic boundaries within the same society.

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>IQ tests are notoriously unreliable across cultural and societal boundaries

That's irrelevant. What matters is what they _are_ reliable for.

Edited to add one source, but there's a lot of literature on the subject, from Prof. Lynn to James Watson (Double helix discoverer), and William Shockley (transistor con-inventor): just look up the Wikipedia articles in them before these posts get whited out by the PC police here

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