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Wow, that's a really good question. I'm fairly certain you've done a great deal more research on this than me. I had to start by finding the definition of two of the words you used. For the benefit of others who might not be as well versed...

evopsych - psychological traits are evolved adaptations

phrenology - the detailed study of the shape and size of the cranium as a supposed indication of character and mental abilities

My previous post was based on information from a recent study on Y-DNA which indicates a high differential in reproductive rate between men and women, with men reproducing at a much lower rate. This of course means that reproductive competition is much higher amongst men (at least in terms of successful reproduction) and might have lead to the aggressive pruning that we see in the y-chromosome. I'm also aware that competition has a heavy influence on evolution and that the sex chromosomes are not really isolated to gender specific anatomy.

Here's that study: http://genome.cshlp.org/content/25/4/459.full

I found another study (link below) on differences in personality traits across genders and culture. The authors found gender differences to be most pronounced in cultures that minimize traditional sex roles. Does this study fit your criteria?

http://www.cin.ufpe.br/~ssj/Genderdifferences%20in%20persona...

With respect to phrenology, I'm aware of studies linking brain size to intelligence. The meta-analysis (linked below) confirms this and actually notes a higher correlation among women.

http://www.govrel.vcu.edu//news/Releases/2005/june/McDaniel-...

From your previous post, I'm guessing you might have reason to discard this type of study. Could you please elaborate and share your thoughts?



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