Kevin Welner, head of the National Education Policy Center, debates Patricia Levesque, Jeb Bush’s chief education aide.

Welner cites research to show that 13 years of high-stakes testing has had little or no benefit. Levesque maintains that testing is the key to academic progress.

It is a good exchange.

But I am reminded of what I call the Ravitch challenge. To those who advocate for the benefits of testing, take the 8th grade math test (released items) and publish your score.

I double dare you.