200

Shame on the PD and NPR

When the Cleveland Plain Dealer and NPR decided to publish the names of 4,200 Ohio teachers and their value-added grades, their reasoning was specious and self-serving. Most of all, it is damaging to the teaching profession in Ohio.

Despite pointing out all the flaws, caveats, and controversies with the use of value-add as a means to evaluate teachers, both publications decided to go ahead and shame these 4,200 teacher anyway. The publication of teachers names and scores isn't new. It was first done by the LA Times, and was a factor in the suicide of one teacher. The LA Times findings and analysis was then discredited

The research on which the Los Angeles Times relied for its August 2010 teacher effectiveness reporting was demonstrably inadequate to support the published rankings. Using the same L.A. Unified School District data and the same methods as the Times, this study probes deeper and finds the earlier research to have serious weaknesses.

DUE DILIGENCE AND THE EVALUATION OF TEACHERS by National Education Policy Center

The Plain Dealer analysis is weaker than the LA Times, relying on just 2 years worth of data rather than 7. In fact, the Pleain Dealer and NPR stated they only published 4,200 teachers scores and not the 12,000 scores they had data for because most only had 1 years worth of data. A serious error as value-add is known to be highly unreliable and subject to massive variance.

Beyond the questionable statistical analysis, the publication of teachers names and value-added scores has been criticized by a great number of people, including corporate education reformer Bill Gates, in NYT op-ed titled "Shame Is Not the Solution"

LAST week, the New York State Court of Appeals ruled that teachers’ individual performance assessments could be made public. I have no opinion on the ruling as a matter of law, but as a harbinger of education policy in the United States, it is a big mistake.

I am a strong proponent of measuring teachers’ effectiveness, and my foundation works with many schools to help make sure that such evaluations improve the overall quality of teaching. But publicly ranking teachers by name will not help them get better at their jobs or improve student learning. On the contrary, it will make it a lot harder to implement teacher evaluation systems that work.

Gates isn't the only high profile corporate education reformer who is critical of such shaming, Wendy Knopp, CEO of Teach for America has also spoken out against the practice

Kopp is not shy about saying what she'd do differently as New York City schools chancellor. While the Bloomberg administration is fighting the United Federation of Teachers in court for the right to release to the news media individual teachers' "value added" ratings—an estimate of how effective a teacher is at improving his or her students' standardized test scores—Kopp says she finds the idea "baffling" and believes doing so would undermine trust among teachers and between teachers and administrators.

"The principals of very high performing schools would all say their No. 1 strategy is to build extraordinary teams," Kopp said. "I can't imagine it's a good organizational strategy to go publish the names of teachers and one data point about whether they are effective or not in the newspaper."

Indeed, if the editors of the Plain Dealer and NPR had read their own reporting, they would have realized the public release of this information was unsound, unfair and damaging. Let's look at the warning signs in their own reporting

...scores can vary from year to year.

Yet they relied upon only 1 years worth of data for much of their analysis, and just 2 for the teachers whose names they published.

...decided it was more important to provide information — even if flawed.

How can it be useful to the layperson to be provided with flawed information? Why would a newspaper knowingly publish flawed information?

...these scores are only a part of the criteria necessary for full and accurate evaluation of an individual teacher.

And yet they publish 4,200 teachers value-added scores based solely on value add, which at best makes up only 35% of a teachers evaluation. Lay people will not understand these scores are only a partial measurment of a teachers effectiveness, and a poor one at that.

...There are a lot of questions still about the particular formula Ohio.

Indeed, so many questions that one would best be advised to wait until those questions are answered before publically shaming teachers who were part of a pilot program being used to answer those questions.

...variables beyond a teacher’s control need to be considered in arriving at a fair and accurate formula.

Yet none of these reporters considered any of these factors in publishing teachers names, and readers will wholly miss that necassary context.

...The company that calculates value-added for Ohio says scores are most reliable with three years of data.

Again, the data is unreliable, especially with less than 3 years worth of data, yet the Plain Dealer and NRP decided they should shame teachers using just 2 years worth of data.

...Ohio’s value-added ratings do not account for the socioeconomic backgrounds of students, as they do in some other states.

How many "ineffective" teachers are really just working in depressed socioeconomic classrooms? The reporters seem not to care and publish the names anyway.

...Value-added scores are not a teacher’s full rating.

No where in the publication of these names are the teachers full ratings indicated. This again leaves lay-people and site visitors to think these flawed value-added scores are the final reflection of a teachers quality

...ratings are still something of an experiment.

How absurd is the decision to publish now seeming? Shaming people on the basis of the results of an experiement! By their very nature experiments can demonstrate something is wrong, not right.

...The details of how the scores are calculated aren’t public.

We don't even know if the value-added scores are correct and accurate, because the formula is secret. How can it be fair for the results of a secret forumla be public? Did that not rasie any alarm bells for the Plain Dealer and NPR?

...The department’s top research official, Matt Cohen, acknowledged that he can’t explain the details of exactly how Ohio’s value-added model works.

But somehow NPR listeners and Cleveland Plain Dealer readers are supposed to understand the complexities, and read the necessary context into the publication of individual teacher scores?

...StateImpact/Plain Dealer analysis of initial state data suggests.

"Initial", "Suggests". They have decided to shame teachers without properly vetting the data and their own analysis - exactly the same problem the LA Times ran into that we highlighted at the top of this article.

It doesn't take a lot of "analysis" to understand that a failing newspaper needed controversy and eyeballs and that their decision to shame teachers was made in their own economic interests and not that of the public good. In the end then, the real shame falls not on teachers who are working hard everyday often in difficult situations made worse by draconian budget cuts, endless political meddling, and student poverty - but on the editors of these 2 publications for putting their own narrow self-interest above that of Ohio's children.

It's a disgrace that they ought to make 4,200 apologies for.

Why Test Scores CAN'T Evaluate Teachers

From the National Education Policy Center. the entire post is well worth a read, here's the synopsis

The key element here that distinguishes Student Growth Percentiles from some of the other things that people have used in research is the use of percentiles. It's there in the title, so you'd expect it to have something to do with percentiles. What does that mean? It means that these measures are scale-free. They get away from psychometric scaling in a way that many researchers - not all, but many - say is important.

Now these researchers are not psychometricians, who aren't arguing against the scale. The psychometricians as who create our tests, they create a scale, and they use scientific formulae and theories and models to come up with a scale. It's like on the SAT, you can get between 200 and 800. And the idea there is that the difference in the learning or achievement between a 200 and a 300 is the same as between a 700 and an 800.

There is no proof that that is true. There is no proof that that is true. There can't be any proof that is true. But, if you believe their model, then you would agree that that's a good estimate to make. There are a lot of people who argue... they don't trust those scales. And they'd rather use percentiles because it gets them away from the scale.

Let's state this another way so we're absolutely clear: there is, according to Jonah Rockoff, no proof that a gain on a state test like the NJASK from 150 to 160 represents the same amount of "growth" in learning as a gain from 250 to 260. If two students have the same numeric growth but start at different places, there is no proof that their "growth" is equivalent.

Now there's a corollary to this, and it's important: you also can't say that two students who have different numeric levels of "growth" are actually equivalent. I mean, if we don't know whether the same numerical gain at different points on the scale are really equivalent, how can we know whether one is actually "better" or "worse"? And if that's true, how can we possibly compare different numerical gains?

[readon2 url="http://nepc.colorado.edu/blog/why-test-scores-cant-evaluate-teachers"]Continue reading...[/readon2]

A doomsday bill for public ed

Innovation Ohio follow up on the news that the public school privatization bill (HB136) is going to change, with some interesting new analysis on what some of the proposed changes might mean

Huffman admitted that in its current form, HB 136 could create a potential “doomsday scenario” for Ohio’s public schools. He said that estimates of the bill’s cost to public schools—$500 million just to pay for students who already attend private schools, and nearly $1 billion in lost revenue once the bill was fully phased in—were “valid.”

The good news is that Huffman announced that a scaled back version of HB 136 would either be introduced as a new bill or rolled into a new education plan Gov. Kasich is expected to submit next year.

The bad news is that even this “scaled back” version would cost districts up to $76.5 million, effectively doubling the cost of private school vouchers from last year.

And many of Huffman’s proposed changes would still present public schools with massive problems.

Take his proposal to cap the amount of state money any district could lose at $4,500 per student, for example.

Under this proposal, locally raised property taxes would still be sent to private schools. Why? Because the $4,500 per pupil in state money Huffman cites is a phantom figure. Its what a district might get before “deductions” for Charter Schools, Open Enrollment, and other voucher programs. Last year, for example, the state provided public school districts with $6.5 billion—which equated to nearly $3,800 for each of the 1.75 million children in those districts. But after “deductions” for charters, vouchers, and open enrollment, that $3,800 shrunk to roughly $3,200. So if districts get $3,200 per pupil from the state—but could lost up to $4,500 per pupil for private school vouchers—they would still lose money. And that would require the schools to either cut programs or seek more funding from taxpayers through local levies.

You can read the whole piece here.

THE AMERICAN JOBS ACT: IMPACT FOR OHIO

Here's some details from the Presidents recently announced "THE AMERICAN JOBS ACT", and how it will impact Ohio's education system specifically. The entire Docuent can be found here.

The President is proposing to invest $35 billion to prevent layoffs of up to 280,000 teachers, while supporting the hiring of tens of thousands more and keeping cops and firefighters on the job. These funds would help states and localities avoid and reverse layoffs now, and will provide $1,093,800,000 in funds to Ohio to support up to 14,200 educator and first responder jobs.

The President is proposing a $25 billion investment in school infrastructure that will modernize at least 35,000 public schools – investments that will create jobs, while improving classrooms and upgrading our schools to meet 21st century needs. Ohio will receive $985,500,000 in funding to support as many as 12,800 jobs.

This week in education cuts

All the school funding and budget cut news as reported from around the state this week.

Saturday 23rd, 2011

Sunday 24th, 2011

  • Even JTF takes a break!

Monday 25th, 2011

Tuesday 26th, 2011

Wednesday 27th, 2011

Thursday 28th, 2011

Friday 29th, 2011