This looks to me like a pretty well-designed research study. It is what they call a “meta-analysis,” which means the authors put together studies other people have done and analyzed the lot of them, in that process which poetess Anne Sexton touched me a long time ago by calling “that awful rowing toward truth.”

Truth is hard to find and I basically believe in the scientific process that tries to get to it. Read more on This Bit About Girls And STEM…