
Ed Notes offers a justification for banning the use of student performance data in teacher tenure decisions: Using test scores to estimate teacher effectiveness is methodologically complicated. (This is true). Therefore, it should be outlawed. (This is absurd).
Yes teacher effectiveness is complicated and therefore test results should not be used, or misused. Why outlaw it? Because the practically criminal people running the NYC schools are not to be trusted. But read on, as Carey says:
Most important things, including teaching, are complicated. If we squelch every attempt to understand such things and act on that knowledge, we'll be left knowing very little about very little, which more or less describes the state of knowledge about teacher effectiveness today. Indeed, most teacher policy failures are a function of privileging easily measurable unimportant things, like master's degrees and state certification, over difficult-to-measure important things, like effectiveness in boosting test scores.
Do you understand any of this jargon? Let me translate: I think it means that we know little about teacher effectiveness but let's throw testing for tenure against the wall and see if it sticks. If there's a high body count of teachers who don't get tenure due to something we know very little about, so be it. Us policy wonks need data, data, data.
I do agree with Carey that MA's and state certification mean little in teacher effectiveness. But how come the wonks always use the term "like effectiveness in boosting test scores." I love the word "like." Like what else makes for teacher effectiveness? They always stop at boosting scores - how about, like Johnnie enters a class as a serial killer and leaves tame as a pussy cat but alas, the teacher is a failure and denied tenure because he didn't boost Johnnie's test score. Or the teacher did fabulous science projects with the class which turned many kids onto science but, darn, we just don't know how to measure a rise in enthusiasm.
Carey goes on:
Ed Notes also offers the "it hasn't been tested" argument, i.e. the chicken-and-egg theory of policy obstructionism: it can't be tried because it hasn't been proven; it can't be proven because it hasn't been tried.
I love being called a dreaded "policy obstructionist." The "teacher effectiveness" crowd seem to use the "it hasn't been tested" argument when it comes to class size reduction, i.e. the chicken-and-egg-theory of class size reduction obstructionism, preferring to focus on teacher effectiveness (which is guaranteed to improve with lower class sizes) despite the fact no one has come up with any way to judge other than observation - not a bad way if done objectively. (Here I will be accused of not wanting this method either because I always talk about vindictive principals, but offer the solution of teachers being allowed to call in an independent arbiter. And while I'm on this, I often tell teachers under attack to tape an observation, which seems to make some supervisors incredibly nervous.)
And of course the obligatory attack by Carey on Eduwonkette for calling all the hysteria over the tenure/testing law "union-bashing:"
Meanwhile, some unknown person who claims to be a social scientist but isn't willing to offer any credentials to prove it labels all critiques of the union's role in legally banning evidence of student learning from judgments of teacher effectiveness as "union bashing."
I'd always been under the impression that "science," and thus "social science," involved certain values of empiricism, evidence, and transparency of information..
But maybe "science" means something different wherever they hand out anonymous, theoretical social science degrees, I don't know.
Now, isn't it interesting how Carey on the one hand disparages official teaching credentials
"that most teacher policy failures are a function of privileging easily measurable unimportant things, like master's degrees and state certification, over difficult-to-measure important things, like effectiveness in boosting test scores."
....but attacks Eduwonette for not showing her credentials, without which we obviously can't trust what she says. The quality of what she (or he -wouldn't that be a kick) write is enough for me. Like take this one from Eduwonkette:
Joel Klein, in his op-ed, even blames unions for the existence of achievement gaps:
Protecting grownups rather than making sure students can read and do math is how our country has gotten into the educational mess it's in today. It's the reason we have shameful racial achievement gaps separating our white and Asian students from our African-American and Latino students.
That's why there are no achievement gaps in North Carolina and Texas!
And add Florida and Mississippi and probably a few other non-unionized states around the nation. Gotta love Wonkette, credentials or not.
And what if it turns out that Eduwonkette drives a school bus? Her credentials are what she has to say. Enough for me.
And note the consistent attack on Wonkette by the Rotherham crowd for being anonymous. Boy, will they all be surprised when she turns out to be 13 and in junior high school.
A future post will go into more detail the entire BloomKlein tenure/testing PR sham.