Value-Added And Collateral Damage

The idea that we should "fire bad teachers" has become the mantra of the day, as though anyone was seriously arguing that bad teachers should be kept. No one is. Instead, the real issue is, and has always been, identification.

Those of us who follow the literature about value-added models (VAM) - the statistical models designed to isolate the unique effect of teachers on their students' test scores - hear a lot about their imprecision. But anyone listening to the public discourse on these methods, or, more frighteningly, making decisions on how to use them, might be completely unaware of the magnitude of that error.

Curriculum: The Missing Link

In a July 21 New York Times cover story, reporter Tamar Lewin rightfully noted "the surprise of many in education circles..." that 27 states had already committed to adopting the new Common Core academic standards developed by the National Governors Association and the Council of Chief State School Officers.

Lewin goes on to attribute this surprise to "states' long tradition of insisting on retaining local control over curriculum" (emphasis added). With this simple statement - the equating of standards with curriculum - the author perpetuates an egregious error in the understanding of education policy. Though the politics of local control touches both standards and curriculum, educators and the public will never get policy right as long as too many conflate the two.

A Below Basic Understanding Of Proficiency

Given our extreme reliance on test scores as measures of educational success and failure, I'm sorry I have to make this point: proficiency rates are not test scores, and changes in proficiency rates do not necessarily tell us much about changes in test scores.

Yet, for example, in the Washington Post editorial about the latest test results from the District of Columbia Public Schools, at no fewer than seven different points (in a 450 word piece) do they refer to proficiency rates (and changes in these rates) as "scores." This is only one example of many.

So, what's the problem?

The Time Factor: It's Not Just KIPP

In this post, I argue that it is important to understand why a few charters (like KIPP) perform better than others. An editorial in today's Washington Post points out that KIPP’s results suggest the achievement-improving potential of more school time for lower-income students – i.e., longer days and years.

Through longer days, mandatory Saturdays, and summer school, KIPP students spend about 60 percent more time in school than typical regular public school students. That's the equivalent of over 100 regular public school days of additional time. This is an astounding difference.

But it's not just KIPP.

Teachers Matter, But So Do Words

The following quote comes from the Obama Administration’s education "blueprint," which is its plan for reauthorizing ESEA, placing a heavy emphasis, among many other things, on overhauling teacher human capital policies:

Of all the work that occurs at every level of our education system, the interaction between teacher and student is the primary determinant of student success.

Specific wordings vary, but if you follow education even casually, you hear some version of this argument with incredible frequency. In fact, most Americans are hearing it – I’d be surprised if many days pass when some approximation of it isn’t made in a newspaper, magazine, or high-traffic blog. It is the shorthand justification – the talking point, if you will – for the current efforts to base teachers’ hiring, firing, evaluation, and compensation on students’ test scores and other "performance” measures.

What Is "Charterness," Exactly?

** Also posted here on Valerie Strauss' Answer Sheet in the Washington Post.

Two weeks ago, researchers from Mathematica dropped a bomb on the education policy community. It didn’t go off.

The report (prepared for the Institute for Education Sciences, a division of the USDOE) includes students in 36 charter schools throughout 15 states. The central conclusion: the vast majority of charter students does no better or worse than their regular public counterparts in math and reading scores (or on most of the other 35 outcomes examined). On the other hand, charter parents and students are more satisfied with their schools, and charters are more effective boosting scores of lower-income students.

One Person, 2.5 Votes

We hear a lot of comparisons of the United States with other nations in terms of education, healthcare, economics, and dozens of other outcomes. These comparisons provide a frame of reference for us. They give us a way of "seeing how we're doing."

One area that is not often discussed in these comparisons, strangely, is electoral participation. I say this is strange because we usually compare ourselves with other democracies, but rarely in terms of democracy's central mechanism.

So let's take a look. {C}{C}{C}