You might find the following question on a first-grade math test: “Fill in the box: 7+2=[blank]+6.” But what you wouldn’t expect is for 25 percent of incoming freshman at a highly ranked university to ...

You might find the following question on a first-grade math test: "Fill in the box: 7+2 = [blank] + 6." What you wouldn't expect is for 25 percent of incoming freshmen at a highly ranked university to ...