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A comment on Average IQ scores seem to have been falling and population ageing may be why.

Re:Average IQ scores seem to have been falling and populatio... by edko on Friday September 29, 2017 @10:52AM (#15365786)
If IQ = 100 * mental age / real age, how is it measured in old age? If you are 80 and have an IQ of 50, would that mean you have the mind of a 40-year-old?
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