No Child Left Behind (NCLB) or Common Core? NCLB and Common Core? If you look at the evidence, the answer to both questions is “no.” There’s precious little evidence that NCLB has worked, and just as little that national standards will do any better.

Despite all the fine sounding talk about the federal government demanding “accountability” and forcing states to improve, NAEP data for long-struggling groups reveals many periods before NCLB with equal or faster score gains than under No Child. In other words, the federal government’s own measure of academic achievement provides no support for the idea that accountability – or anything else under No Child – has translated into better performance.

But hasn’t the problem been the lack of a common measure of “proficiency,” which has allowed states to dodge the hard work of getting all kids up to speed? And isn’t that precisely what the Common Core will fix?

No again. What we’ve learned from not just NCLB, but decades of failed federal education intervention, is that politicians and administrators at all levels will find ways to take federal money while avoiding meaningful consequences for poor performance. And there’s little reason to believe that the Common Core will change that.

For one thing, if the Common Core truly is controlled by states – which, given the Race to the Top, waivers, and federal funding of national tests it clearly isn’t – then states will ignore the standards whenever they’re inconvenient. And if the federal government tries to put the screws to states that underperform? All the teachers’ unions, administrators’ associations, and other groups representing those who would be held accountable will mobilize and have the system gutted. It’s the clear lesson of history.

But isn’t the Common Core so good, and having national standards so important, that we must adopt them?

Yet again, no.

There’s essentially no meaningful evidence that, other things being equal, countries with national standards perform better than those without. And there is serious disagreement over the quality of the Common Core, including powerful critiques from well known English language arts expert Sandra Stotsky, and the only mathematician on the Common Core Validation Committee, R. James Milgram.

Common Core, No Child Left Behind – both are cut from the same, moth-devoured cloth: top-down government control. In light of decades of costly failure, it is well past time we stop entertaining such fixes and move on to something different. It’s time to focus on fundamentally changing the system so that educators have the freedom to tailor teaching to the needs of unique children, while parents are empowered to hold educators truly accountable. It is time for school choice, which, unlike NCLB and national standards, the evidence very much supports.

C/P from the National Journal’s “Education Experts” blog.