No evidence that single-sex schools are better than coed

As someone who weathered an all-boys high school, I was always bewildered by the constant reassurances that single-sex schools are better for everyone concerned. The prevailing wisdom was that young men and women both would be less distracted by the opposite sex, and so would work harder — which completely ignores a… » 9/22/11 12:00pm 9/22/11 12:00pm