Well look who’s avoiding her thesis work by writing two posts in one day! (Even if they are both basically link dumps.) Dear readers, please direct your attention to this post by Greg Laden of ScienceBlogs. It is basically the final word, by an anthropologist, on how evolutionary psychology that aims to study gender differences has gone awry.
I’ll just add one comment to it: the sex differences that are caused by developmental modifications, like the effect of testosterone on neurons that “probably accounts for the fact that there are almost no male simultaneous translators”, don’t cause a strict binary. There are almost but not entirely no male simultaneous translators; there are many females who are not simultaneous translators. There’s a statistical skew with respect to sex (that is, among cis-gendered individuals, which is almost exclusively what research of this ilk deals with), but not every member of each sex is typical of the overall pattern. And so, if you’re using a pattern like this as a shortcut to understand the opposite sex (or people of another ethnicity, because the same argument applies), you are stereotyping, or in other words, being an asshole.