The evidence presented is IQ scores from 1932. Given historical gender biases this not persuasive. Culling scientific evidence from conservative think tank Op-Eds is probably not a best practice...

There are many other data sources, some are linked from http://en.wikipedia.org/wiki/Sex_differences_in_intelligence - I just linked to the above article because it has a pretty figure and it's not behind an academic paywall.

Maybe most notable is a 1995 paper in Science http://www.sciencemag.org/content/269/5220/41 but it is both behind a paywall and completely devoid of figures! You get the main idea from the abstract, though: Except in tests of reading comprehension, perceptual speed, and associative memory, males typically outnumber females substantially among high-scoring individuals.

Well here is something not behind a paywall: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2689999/. This study finds that gender differences among top performers varies by ethnic and national background.

While there may be gender differences among high/low scoring individuals, I resent that that this is treated as a scientific fact when there are limited studies with contradictory findings.

That's an interesting article. I guess it's not as clear cut as many people believe.

Something must be done.