What Doesn’t Work Clearinghouse



By 10/04/2010

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The U.S. Department of Education’s “What Works Clearinghouse” (WWC) is supposed to adjudicate the scientific validity of competing education research claims so that policymakers, reporters, practitioners, and others don’t have to strain their brains to do it themselves.  It would be much smarter for folks to exert the mental energy themselves rather than trust a government-operated truth committee to sort things out for them.

WWC makes mistakes, is subject to political manipulation, and applies arbitrary standards.  In short, what WWC says is not The Truth.  WWC is not necessarily less reliable than any other source that claims to adjudicate The Truth for you.  Everyone may make mistakes, distort results, and apply arbitrary standards.  The problem is that WWC has the official endorsement of the U.S. Department of Education, so many people fail to take their findings with the same grains of salt that they would to the findings of any other self-appointed truth committee.  And with the possibility that government money may be conditioned on WWC endorsement, WWC’s shortcomings are potentially more dangerous.

I could provide numerous examples of WWC’s mistakes, political manipulation, and arbitrariness, but for the brevity of a blog post let me illustrate my point with just a few.

First, WWC was sloppy and lazy in its recent finding that the Milwaukee voucher evaluation, led by my colleagues Pat Wolf and John Witte, failed to meet “WWC evidence standards” because “the authors do not provide evidence that the subsamples of voucher recipients and public school comparison students analyzed in this study were initially equivalent in math and reading achievement.” WWC justifies their conclusion with a helpful footnote that explains: “At the time of publication, the WWC had contacted the corresponding author for additional information regarding the equivalence of the analysis samples at baseline and no response had been received.”

But if WWC had actually bothered to read the Milwaukee reports they would have found the evidence of equivalence they were looking for.  The Milwaukee voucher evaluation that Pat and John are leading has a matched-sample research design.  In fact, the research team produced an entire report whose purpose was to demonstrate that the matching had worked and produced comparable samples. In addition, in the 3rd Year report the researchers devoted an entire section (see appendix B) to documenting the continuing equivalence of the matched samples despite some attrition of students over time.

Rather than reading the reports and examining the evidence on the comparability of the matched samples, WWC decided that the best way to determine whether the research met their standards for sample equivalence was to email John Witte and ask him.  I guess it’s all that hard work that justifies the multi-million dollar contract Mathematica receives from the U.S. Department of Education to run WWC.

As it turns out, Witte was traveling when WWC sent him the email.  When he returned he deleted their request along with a bunch of other emails without examining it closely.  But WWC took Witte’s non-response as confirmation that there was no evidence demonstrating the equivalence of the matched samples.  WWC couldn’t be bothered to contact any of the several co-authors.  They just went for their negative conclusion without further reading, thought, or effort.

I can’t prove it (and I’m sure my thought-process would not meet WWC standards), but I’ll bet that if the subject of the study was not vouchers, WWC would have been sure to read the reports closely and make extra efforts to contact co-authors before dismissing the research as failing to meet their standards.  But voucher researchers have grown accustomed to double-standards when others assess their research.  It’s just amazingly ironic to see the federally-sponsored entity charged with maintaining consistent and high standards fall so easily into their own double-standard.

Another example — I served on a WWC panel regarding school turnarounds a few years ago.  We were charged with assessing the research on how to successfully turnaround a failing school.  We quickly discovered that there was no research that met WWC’s standards on that question.  I suggested that we simple report that there is no rigorous evidence on this topic.  The staff rejected that suggestion, emphasizing that the Department of Education needed to have some evidence on effective turnaround strategies.

I have no idea why the political needs of the Department should have affected the truth committee in assessing the research, but it did.  We were told to look at non-rigorous research, including case-studies, anecdotes, and our own experience to do our best in identifying promising strategies.  It was strange — there were very tight criteria for what met WWC standards, but there were effectively no standards when it came to less rigorous research.  We just had to use our professional judgment.

We ended up endorsing some turnaround strategies (I can’t even remember what they were) but we did so based on virtually no evidence.  And this was all fine as long as we said that the conclusions were not based on research that met WWC standards.  I still don’t know what would have been wrong with simply saying that research doesn’t have much to tell us about effective turnaround strategies, but I guess that’s not the way truth committees work.  Truth committees have to provide the truth even when it is false.

The heart of the problem is that science has never depended on government-run truth committees to make progress.  It is simply not possible for the government to adjudicate the truth on disputed topics because the temptation to manipulate the answer or simply to make sloppy and lazy mistakes is all too great.  This is not a problem that is particular to the Obama Administration or to Mathematica.  My second example was from the Bush Administration when WWC was run by AIR.

The hard reality is that you can never fully rely on any authority to adjudicate the truth for you.  Yes, conflicting claims can be confusing.  Yes, it would be wonderfully convenient if someone just sorted it all out for us.  But once we give someone else the power to decide the truth on our behalf, we are prey to whatever distortions or mistakes they may make.  And since self-interest introduces distortions and the tendency to make mistakes, the government is a particularly untrustworthy entity to rely upon when it comes to government policy.

Science has always made progress by people sorting through the mess of competing, often technical, claims.  When official truth committees have intervened, it has almost always hindered scientific progress.  Remember that  it was the official truth committee that determined that Galileo was wrong.  Truth committees have taken positions on evolution, global warming, and a host of other controversial topics.  It simply doesn’t help.

We have no alternative to sorting through the evidence and trying to figure these things out ourselves.  We may rely upon the expertise of others in helping us sort out competing claims, but we should always do so with caution, since those experts may be mistaken or even deceptive.  But when the government starts weighing in as an expert, it speaks with far too much authority and can be much more coercive.  A What Works Clearinghouse simply doesn’t work.




Comment on this article
  • Jo-Anne Gross says:

    I am dismayed at what seems like corruption at WWC-As a reading expert on the new research from the NICHD and the best of the old-Orton Gillingham and as a practicing clinician for the teaching of Reading to kids at risk-I have been appalled at their reports and how skewed they appear to be.

    I even sent one report to Reid Lyon-everything was good except for one very important thing-fluency-otherwise all check marks were on-but if there is no fluency-there is no comprehension.
    It is scary to think being on there will lead to gov money.

  • Barry Stern says:

    Dr. Greene is correct. Government agencies certainly do not have a monopoly on truth, nor do the private companies that get paid to jump through their hoops. At a time in our history when policy ought to encourage trying out new methodologies to accelerate learning, and the use of research findings from disciplines outside of education to inform educational practices, such attempts are often frustrated by government’s interpretation of what is “proven” and what is not. Promising ideas oftentimes are not funded because government says they are not “evidence-based.” What a perfect way to stop innovation and to continue replicating the known, no matter how paltry the results.

  • Dee Alpert says:

    WWC did a report on one well-thought of reading remediation program based solely on what was on the program’s publisher’s web site … and did the evaluation without checking to see what the program module they were evaluating was designed to remediate. Needless to say, since WWC evaluated it for efficacy re “X” and this module was designed to remediate “Y,” the evaluation was negative. It would appear from the WWC that the federal evaluators made no effort to contact the programs’ publishers to determine what their various modules were designed to do. Why should WWC bother? Oh, the program it gave a negative evaluation is one which many middle class parents secure privately in order to get their kids’ reading disabilities effectively evaluated – and then go on to demand and win impartial hearings requiring districts reimburse them for the costs.

    Since reading this intentional hatchet job, I read WWC writeups only when I have insomnia and absolutely nothing better to do … and while the insomnia is not that rare, the “nothing better to do” means WWC gets a few minutes of my attention per year … at best.

  • Dick Schutz says:

    You are pinning the rap on the wrong culprit, Jay. The issue is not the “government” and “truth.” It’s the Institute of Education Sciences and research ideology. IES came to believe that the randomized control design is the “gold standard.” IES didn’t make this up internally; they were advised by the “best and brightest” educational researchers and statisticians.

    Your anecdotal experience with the Clearinghouse is relevant, but why are you so late in coming out of the closet re what went on with “turnarounds.”?

    Where there’s 2 out of 2 “bad experiences” there are likely more. But the larger point is that one simply can’t use the Clearinghouse reports
    as a basis for implementing educational products and practices. Check Marks on sloshy bumper-sticker constructs do not provide a basis for “evidence-based decision making.”

    The Clearinghouse Contractors are reputable outsourcing organizations. They are just meeting the contract requirements. The requirements are rotten and the reports stink. But who is noticing.

    The school community ignores the reports and the reform community dreams on.

  • Allen says:

    Can anyone provide an alternative to me? We are constantly “assaulted” with new methods, and programs that are “research based”. Conversations abruptly end with the final statement from principals stating that “all the research says..” I have never been provided the so called research to back up their claim and the phrase is used like a slamming door to squash any constructive honest debate.

    So my question is, “Where do I go to find reliable sources for the evaluation of studies?”

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