I have yet to see a convincing meta-analysis on this subject. All of the reasonably broad ones I have encountered fail to reject the null for a difference in mean, though most show marginally higher variance for males. Obviously also depends on the subscales and coeffs for g.
I'd say the evidence on general intelligence is inconclusive due to a variety of reasons but especially psychometric and sampling issues. But my posterior mode is on male advantage of perhaps 3 IQ.
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Regarding sampling issues, definitely, particularly if one hypothesizes that late developmental effects (e.g. during ages 20-30) might contribute to any deviation that does exist. Very difficult to sample.
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I skimmed through abstracts from a few more modern reviews, and everything I see is at ~0-2. Possible age-dependent effects. This is all further dependent on the extent to which each of the respective tests manage to capture e.g. spatial abilities, social abilities, etc.
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Read through these two recent issues in MQ. http://www.mankindquarterly.org/archive/issue/58-1 … and http://www.mankindquarterly.org/archive/issue/57-1 …
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Thanks; this looks closer to what I had in mind. Again, given caveats about choice of subscales etc. I hope there are plenty of funnel plots as well.
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Probably not. But I'd bet that there's pub bias in favor of null sex differences.
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Overall? Perhaps. In this publication, though, I might reasonably expect the opposite. Anyway, need meta-analysis to make much sense of the results as a whole.
End of conversation
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