Sometimes, groups are genuinely found to differ a bit, on average. For instance, it may be found that men are a bit more dishonest than women or that kids from East Asian countries outperform American kids at math, on average. Situations like this often involve people jumping to inaccurate conclusions and spreading misinformation. In this article, we’ll explore why, as well as how to think more clearly about these kinds of situations.

http://clearerthinking.org/post/how-to-think-about-group-differences