Is there a sex difference in IQ scores? (Reply)

@article{Blinkhorn2006IsTA,
  title={Is there a sex difference in IQ scores? (Reply)},
  author={Steve Blinkhorn},
  journal={Nature},
  year={2006},
  volume={442},
  pages={E1-E2}
}
Irwing and Lynn explicitly claim to have identified a sex difference in IQ among university students1. They now counter2 my criticism3 of the flawed methodology upon which their conclusions are based and claim that an estimate of what this difference may actually be is irrelevant. 

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References

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Intelligence: Is there a sex difference in IQ scores?

TLDR
It is believed that the principal error of Blinkhorn's criticism is that he does not consider the result in the context of several other studies showing that adult males have an IQ advantage of around 4–6 IQ points.

Intelligence: A gender bender

The conclusion of a number-crunching exercise on various data sets is that male university students have significantly higher IQs than their female counterparts. But the methodology used is deeply

Sex differences in means and variability on the progressive matrices in university students: a meta-analysis.

TLDR
A meta-analysis of 22 studies of sex differences in university students of means and variances on the Progressive Matrices disconfirm the frequent assertion that there is no sex difference in the mean but that males have greater variability.