As for the "bro"trevorsy that is brewing in these comments. Lighten up for crying out loud.
And the tech world is the poorer for it.
[0]: (This is an overview, but also cites some actual peer-reviewed studies) http://www.forbes.com/2010/06/08/science-engineering-gender-...
This is hardly new, or confined to a single gender. It's like when they study obesity and find that people who "can't" lose weight massively under report their calories.