Among the more interesting items in a new TIME feature on education reforms involving cash incentives is the following aside:

But all this time, there has been only one real question, particularly in America’s lowest-performing schools: Does it work?

To find out, a Harvard economist named Roland Fryer Jr. did something education researchers almost never do: he ran a randomized experiment in hundreds of classrooms in multiple cities. [Emphasis added.]

Imagine that: testing an education theory. What a concept. Terry Stoops explains below that backers of Wake County schools? recently scrapped forced busing policy seem not to have thought of that idea.