Compounding the problem is a social-psychological phenomenon called “stereotype threat.” Social scientists have observed that when members of a group are made aware of a negative stereotype, they are more likely to perform according to that stereotype. For example, stereotypically, boys are better at math and science than girls. When girls are reminded of their gender before a math or science test, even by something as simple as checking off an M or F box at the top of the test, they perform worse.
