Here's a headline from the Department of Unintentional Humor, care of the Washington Post:
h/t Robert VerBruggen
Friday, December 13, 2013
Monday, December 9, 2013
Questioning the PISA
International test scores are regularly cited by both sides in the debate over American education policy. Finland outscores us? Must be the highly-paid teachers! Or is it the back-to-basics curriculum? Or the nationalized structure? Or the homogeneous student population? Or the country's low gini coefficient? No one really knows.
In fact, the scores might not mean much of anything. Take the Program for International Student Assessment (PISA). With the new PISA scores released last week, some advocates are scrambling to spin the results. Others are more skeptical. As I wrote for National Review:
Interestingly, Mark Steyn took issue with that statement, arguing that European nations also have high levels of immigration from poor countries, yet they still seem to outscore the United States. Maybe the U.S. performs poorly even after controlling for demographic factors? Tino Sanandaji did a good job of testing that theory with the 2009 PISA data. To create a comparison that is as apples-to-apples as possible, he limited the European sample to students who were not first or second generation immigrants. He then compared these native scores to the scores of white students in the United States:
Sanandaji found that this comparison makes the U.S. look pretty good. Again, I don't believe that much can be learned from PISA scores one way or the other, but there is no evidence that the U.S. education system is failing miserably.
In fact, the scores might not mean much of anything. Take the Program for International Student Assessment (PISA). With the new PISA scores released last week, some advocates are scrambling to spin the results. Others are more skeptical. As I wrote for National Review:
[Rick] Hess points to the mixing of city and country data, ...the inexplicable fall of Finland, and the extreme sensitivity of the rankings to the choice of test questions.And even if we believe that PISA scores have some reasonable degree of validity, can we really attribute most of the country-to-country differences to education policy? No. As I noted in a separate post for National Review, "While the U.S. gets mediocre scores, it also has demographic and socioeconomic challenges that the more homogeneous European and East Asian countries do not."
What about the mechanics of PISA test administration? Did every country follow the same strict procedures? Almost certainly not. Consider sample drop-out, which is one of the most frequent problems we confront in program evaluation.... PISA response rates vary widely from country to country. For instance, Finland tested 96 percent of its nationally-representative sample, but Mexico somehow tested only 63 percent of its own. One need not be a cynic to suspect some gamesmanship there.
Interestingly, Mark Steyn took issue with that statement, arguing that European nations also have high levels of immigration from poor countries, yet they still seem to outscore the United States. Maybe the U.S. performs poorly even after controlling for demographic factors? Tino Sanandaji did a good job of testing that theory with the 2009 PISA data. To create a comparison that is as apples-to-apples as possible, he limited the European sample to students who were not first or second generation immigrants. He then compared these native scores to the scores of white students in the United States:
Sanandaji found that this comparison makes the U.S. look pretty good. Again, I don't believe that much can be learned from PISA scores one way or the other, but there is no evidence that the U.S. education system is failing miserably.
Monday, December 2, 2013
Social planners must feel the weight of history
When Nick Kristof recently extolled Oklahoma's universal pre-school for four-year-olds, it was deja vu for those of us who are hard-headed about evaluating social programs.
Oklahoma pre-school has never been subject to a "gold standard" evaluation--meaning a large-scale, randomized experiment. Kristof's column came just weeks after a gold standard evaluation of pre-school in Tennessee found essentially no differences between the treatment and control groups. And that evaluation follows decades of experiments showing little to no effect of similar programs. Nevertheless, Kristof's enthusiasm for Oklahoma is unchecked by the weight of history.
There's a pattern here. As I wrote for National Review recently:
Oklahoma pre-school has never been subject to a "gold standard" evaluation--meaning a large-scale, randomized experiment. Kristof's column came just weeks after a gold standard evaluation of pre-school in Tennessee found essentially no differences between the treatment and control groups. And that evaluation follows decades of experiments showing little to no effect of similar programs. Nevertheless, Kristof's enthusiasm for Oklahoma is unchecked by the weight of history.
There's a pattern here. As I wrote for National Review recently:
Skeptics of government social programs have long been frustrated by a familiar pattern of media coverage. It starts with a new social program portrayed as the key to fixing problems like poverty or low test scores. The media proceed to either ignore the long history of similar initiatives found to have little effect, or they acknowledge the history but report that this program is fundamentally different from everything that has come before.
Either way, the media trumpet the positive results from early evaluations of the program, even when those results are based on small samples, short time horizons, non-experimental data, or all of the above. Years later, researchers find that a randomized experiment shows that the program has no effect, or that the effects quickly fade, or that the effects cannot be replicated on a larger scale. These findings are quietly reported in a technical article, with no fanfare and little public attention. By that time, the media have already moved on to promoting another new social program.Read the whole thing here.
Saturday, November 30, 2013
Julia Ioffe and the cure for Gell-Mann amnesia
Building on what
seems to be a new
subgenre of political journalism, the New Republic has a long
piece
about how the Heritage Foundation has allegedly changed under
Jim DeMint’s
leadership.
What caught my
eye was reporter
Julia Ioffe’s reference to the development of the Heritage
immigration study
I co-authored with Robert Rector. Here’s her sentence: “Policy
analysts were
shut out of the discussion, and the paper, which was written
to conform with
DeMint’s anti-immigration stance, did not go through the
standard vetting
procedure.”
All three claims
in that sentence
are flat-out false. But why worry about facts when you've got a great (made-up) story to tell?
One wonders how
accurate the rest
of her piece could be. I’m reminded of what the late novelist
Michael Crichton called
the “Gell-Mann amnesia effect”:
Briefly
stated, the
Gell-Mann Amnesia effect is as follows. You open the newspaper
to an article on
some subject you know well…. You read the article and see the
journalist has
absolutely no understanding of either the facts or the issues.
Often, the
article is so wrong it actually presents the story
backward—reversing cause and
effect. I call these the “wet streets cause rain” stories.
Paper’s full of
them.
In
any case, you
read with exasperation or amusement the multiple errors in a
story, and then
turn the page to national or international affairs, and read
as if the rest of
the newspaper was somehow more accurate about Palestine
than the baloney you just read. You
turn the page, and forget what you know.... The only possible explanation for our behavior is amnesia.
Whenever I feel a bout of Gell-Mann amnesia coming on, I re-read articles like the one in the New Republic. Cured in no time!
Friday, November 29, 2013
Clarence Thomas is right about disclosure laws
In the famous Citizens United Supreme Court case dealing with campaign finance restrictions, Clarence Thomas was the only justice to argue that disclosure laws violate the First Amendment. Thomas's position was that political organizations have the right to keep their donors secret. I was initially skeptical. After all, if donors are so confident in their views, they should be willing to publicly defend them. Don't we have a "marketplace of ideas" for a reason?
But I've come to agree with Thomas. Some views are so unpopular that people risk their livelihoods and even their personal safety when expressing them. What's troubling is that these views need not be considered universally heinous--they need only be unpopular among influential media figures or politically-connected lobbying groups. Consider the ongoing case of sociologist Mark Regnerus, whose scholarly research has questioned the "no differences" orthodoxy regarding the children of gay parents. I wrote about Regnerus for National Review recently:
![]() |
| Clarence Thomas |
Jennifer Marshall and I detail here the furious reaction that Regnerus sparked, but suffice to say that it involved hysterical condemnations in the press, a frivolous “scientific misconduct” investigation conducted at the behest of a blogger (!), emotion-laden joint statements, evidence-free accusations of corruption on the part of the journal, and more. Now the journal’s editor will have his e-mails scrutinized for the slightest inappropriate thought.I went on to note that other researchers will be understandably leery of broaching this issue, given the harassment that Regnerus and his editor have endured. The same goes for grant writers and other donors interested in publicly supporting the research. Their case illustrates that the First Amendment must be about more than just a formalistic legal right to speak. The purpose of free speech in a democratic society is to ensure that all ideas have the chance to be heard and debated. By forcibly "outing" supporters through disclosure laws, the government effectively discourages speech that influential people don't want to hear.
Friday, November 8, 2013
Public schools do not need more money
As with most government functions, a political establishment has coalesced around public education. The establishment endlessly lobbies for more school spending, even as past experience and current evidence suggest it will not be helpful.
This past Tuesday, Colorado voters dealt the education establishment a blow by rejecting Amendment 66, a ballot initiative that would have raised $1 billion in taxes for the state's public schools. I described the amendment for National Review:
This past Tuesday, Colorado voters dealt the education establishment a blow by rejecting Amendment 66, a ballot initiative that would have raised $1 billion in taxes for the state's public schools. I described the amendment for National Review:
Like most government agencies, public education in Colorado has historically received big budget increases, but supposedly remains chronically short of funds. Coloradans are being deluged with stories about schools that can barely afford to keep the lights on, but per-pupil spending in the state, adjusted for inflation, is up 20 percent since 1990 and about 10 percent since 2000. Where does the money go?...If current money is tied up in bureaucratic overhead, why not try to shift some of those funds into education programs before asking taxpayers for another $1 billion?...Colorado taxpayers won this round, but the establishment often uses the courts to achieve what it could not win at the ballot box. From a second National Review piece:
The initiative also creates an “education achievement fund” paid for with the new taxes. It would enable passage of a separate bill that would use the new revenue on — in the words of the New York Times — “an educator’s wish-list of measures.” These include class-size reductions, professional-development classes, full-day kindergarten, state-sponsored preschool, and more. The cost effectiveness of all of these initiatives are, to put it mildly, dubious.
A favorite tactic of the more-ed-spending coalition is to bypass the democratic process via lawsuits. Judges will then use innocuous phrases in state constitutions — “effective public schooling,” or something along those lines — to seize control of education policy. Max Eden recently wrote on AEI’s blog about the Kansas supreme court, which used the word improvement in this sentence from the state’s constitution — “The legislature shall provide for intellectual, educational, vocational and scientific improvement by establishing and maintaining public schools” — to mandate that the legislature spend more money until test scores go up!Colorado's supreme court recently rejected a similar lawsuit, but there are surely more to come.
Sunday, November 3, 2013
What government schools can teach us about government healthcare
![]() |
| Up with teachers, down with doctors? |
...The government clearly does not try to underpay for education. Quite the opposite, in fact. Spending more on schools is a perennial promise made by politicians of all stripes. Per-pupil expenditures have more than doubled in real terms since the 1970s, while test scores have barely budged. If single-payer systems are always effective at depressing prices, our public schools didn’t get that memo.But if government did succeed in underpaying for services, would that be a good thing? In the context of public education, advocates of larger government would clearly say no.
It’s easy to see that there would be downsides to the “savings” generated in that scenario. If schools paid too little for teachers, the government would be unable to recruit and retain the best ones. Teachers (and principals and textbook writers) would increasingly leave the public schools rather than be paid below the market rates that their skills are worth.
This point is surely understood by those who constantly push for more school spending, particularly on teacher salaries. They never suggest that the government’s education monopoly could be an instrument for spending less rather than more.There is a remarkable inconsistency here:
Imagine a politician proudly advertising his new plan to underpay teachers! Yet this is the argument made by single-payer healthcare boosters, with the word “doctors” implicitly substituted for “teachers.” The Economic Policy Institute (EPI), for example, has published several studies arguing that public school teachers are somehow paid below market levels, and that this has dire consequences for classroom learning. But EPI also touts its public health insurance plan, which would use “concentrated purchasing power” to force provider prices below market levels. In other words, underpaying teachers is bad, but underpaying doctors is good.This irrational "up with teachers, down with doctors" mindset calls into question the entire cost-saving justification for single-payer healthcare. Read the Forbes piece here, and also see my blog post for National Review on the same topic.
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