NAEP Math Scores, NCLB, and the Federal Government
I’m surprised anyone was surprised by the recent flat-lining of scores on the NAEP 4th grade math test. The rate of improvement in NAEP scores has been declining since No Child Left Behind was passed, and the recent results are consistent with that trend.
But what really amazes me is that so many people think the solution is just to tweak NCLB! The unstated assumption here is that federal policy is a key determinant of educational achievement. That’s rubbish.
We’ve spent $1.8 trillion on hundreds of different federal education programs since 1965, and guess what: at the end of high school, test scores are flat in both reading and math since 1970, and have actually declined slightly in science. (Charted for your viewing pleasure here).
If we’ve proved anything in the past 40 years, it is that federal involvement in education is a staggering waste of money.
Meanwhile, education economists have spent the last several decades finding out what actually does work in education. They’ve compared different kinds of school systems and it turns out that parent-driven, competitive education markets consistently outperform state monopoly school systems like ours. I tabulated the results in a recent peer-reviewed paper and they favor education markets over monopolies by a margin of 15 to 1.
So policymakers who actually care about improving educational outcomes should be spending their time and resources enacting laws that will bring free and competitive education markets within reach of all families. And they should be ignoring the education technocrats who — like Soviet central planners — just want to keep spending other people’s money tweaking their fruitless five year plans.
This Is Your Brain on Torture
We’ve all heard the argument that a subject under torture—or whatever this week’s euphemism is—may begin fabricating whatever they believe the interrogator wants to hear just to get the agony to stop. Now neuroscientists are suggesting that inflicting too much pain and stress on a subject may not just induce them to lie; it may cause them to lose track of what’s true and false altogether:
Fact One: To recall information stored in the brain, you must activate a number of areas, especially the prefrontal cortex (site of intentionality) and hippocampus (the door to long-term memory storage). Fact Two: Stress such as that caused by torture releases the hormone cortisol, which can impair cognitive function, including that of the prefrontal cortex and hippocampus. Studies in which soldiers were subjected to stress in the form of food and sleep deprivation have found that it impaired their ability to recall personal memories and information, as this 2006 study reported. “Studies of extreme stress with Special Forces Soldiers have found that recall of previously-learned information was impaired after stress occurred,” notes O’Mara. “Water-boarding in particular is an extreme stressor and has the potential to elicit widespread stress-induced changes in the brain.”
Stress also releases catecholamines such as noradrenaline, which can enlarge the amygdale (structures involved in the processing of fear), also impairing memory and the ability to distinguish a true memory from a false or implanted one. Brain imaging of torture victims, as in this study, suggest why: torture triggers abnormal patterns of activation in the frontal and temporal lobes, impairing memory. Rather than a question triggering a (relatively) simple pattern of brain activation that leads to the stored memory of information that can answer the question, the question stimulates memories almost chaotically, without regard to their truthfulness.
In brief, the subject may lose genuine memories, and come to believe that their confabulations are authentic ones. The full literature review, from Trends in Cognitive Science, can be downloaded in PDF form here.
Filed under: Foreign Policy and National Security; Law and Civil Liberties
Actually, Big Mistakes Are to Be Expected…
Cognitive scientist Dan Willingham has a helpful column on the WaPo’s “Answer Sheet” blog. In it, he notes that DC Public Schools advises its employees to teach to students’ ”diverse learning styles” (e.g. “auditory learners,” “visual learners,” etc.) despite the fact that research shows these categories are pedagogically meaningless.
But what really grabbed my attention was this comment: “a misunderstanding of a pretty basic issue of cognition is a mistake that one does not expect from a major school system. It indicates that the people running the show at DCPS are getting bad advice about the science on which to base policy.”
As cognitive scientists have been collecting and analyzing evidence on “learning styles” for generations, social scientists and education historians been doing the same for school systems. What these latter groups find is that it is perfectly normal for public school districts to be unaware of or even indifferent to relevant research and to make major pedagogical errors as a result. Furthermore, there is no evidence that large districts are any better at avoiding these pitfalls than smaller ones. If anything, the reverse is true.
Not only are such errors to be expected of public school systems, we can actually say why that is the case with a good degree of confidence: public schooling lacks the freedoms and incentives that, in other fields, both allow and encourage institutions to acquire and effectively exploit expert knowledge.
Districts such as Washington DC can persist year after year with abysmal test scores, abysmal graduation rates, and astronomical costs. That is because they have a monopoly on a vast trove of government k-12 spending. In the free enterprise system, behavior like that usually results in the failure of a business and its disappearance from the marketplace. So, in the free enterprise sector, it is indeed rare to see large institutions behaving in such a dysfunctional manner, because it would be difficult if not impossible for them to grow that big in the first place. Long before they could scale up on that level, they would lose their customers to more efficient, higher quality competitors.
So if we want to see the adoption and effective implementation of the best research become the norm in education, we have to organize schooling the same way we organize other fields: as a parent-driven competitive marketplace.
Cherry Picking Climate Catastrophes: Response to Conor Clarke, Part II
Conor Clarke at The Atlantic blog, raised several issues with my study, “What to Do About Climate Change,” which Cato published last year.
One of Conor Clarke’s comments was that my analysis did not extend beyond the 21st century. He found this problematic because, as Conor put it, climate change would extend beyond 2100, and even if GDP is higher in 2100 with unfettered global warming than without, it’s not obvious that this GDP would continue to be higher “in the year 2200 or 2300 or 3758”. I addressed this portion of his argument in Part I of my response. Here I will address the second part of this argument, that “the possibility of ‘catastrophic’ climate change events — those with low probability but extremely high cost — becomes real after 2100.”
The examples of potentially catastrophic events that could be caused by anthropogenic greenhouse gas induced global warming (AGW) that have been offered to date (e.g., melting of the Greenland or West Antarctic Ice Sheets, or the shutdown of the thermohaline circulation) contain a few drops of plausibility submerged in oceans of speculation. There are no scientifically justified estimates of the probability of their occurrence by any given date. Nor are there scientifically justified estimates of the magnitude of damages such events might cause, not just in biophysical terms but also in socioeconomic terms. Therefore, to call these events “low probability” — as Mr. Clarke does — is a misnomer. They are more appropriately termed as plausible but highly speculative events.
Consider, for example, the potential collapse of the Greenland Ice Sheet (GIS). According to the IPCC’s WG I Summary for Policy Makers (p. 17), “If a negative surface mass balance were sustained for millennia, that would lead to virtually complete elimination of the Greenland Ice Sheet and a resulting contribution to sea level rise of about 7 m” (emphasis added). Presumably the same applies to the West Antarctic Ice Sheet.
But what is the probability that a negative surface mass balance can, in fact, be sustained for millennia, particularly after considering the amount of fossil fuels that can be economically extracted and the likelihood that other energy sources will not displace fossil fuels in the interim? [Remember we are told that peak oil is nigh, that renewables are almost competitive with fossil fuels, and that wind, solar and biofuels will soon pay for themselves.]
Second, for an event to be classified as a catastrophe, it should occur relatively quickly precluding efforts by man or nature to adapt or otherwise deal with it. But if it occurs over millennia, as the IPCC says, or even centuries, that gives humanity ample time to adjust, albeit at a socioeconomic cost. But it need not be prohibitively dangerous to life, limb or property if: (1) the total amount of sea level rise (SLR) and, perhaps more importantly, the rate of SLR can be predicted with some confidence, as seems likely in the next few decades considering the resources being expended on such research; (2) the rate of SLR is slow relative to how fast populations can strengthen coastal defenses and/or relocate; and (3) there are no insurmountable barriers to migration.
This would be true even had the so-called “tipping point” already been passed and ultimate disintegration of the ice sheet was inevitable, so long as it takes millennia for the disintegration to be realized. In other words, the issue isn’t just whether the tipping point is reached, rather it is how long does it actually take to tip over. Take, for example, if a hand grenade is tossed into a crowded room. Whether this results in tragedy — and the magnitude of that tragedy — depends upon how much time it takes for the grenade to go off, the reaction time of the occupants, and their ability to respond.
Filed under: Energy and Environment; International Economics and Development
STEM Sky Not Falling?
Education policy is far too rarely driven by facts or logic — they’re just too inconvenient, mucking up both uber-hyped “crises” and warm-and-fuzzy myths.
Recently, the big scare has been that the United States is on its way to a desperate shortage of scientists and engineers, a message that has, of course, been heartily embraced by politicians determined to push more kids into science, technology, engineering, and mathematics (STEM) fields.
Well, it seems that once again the crisis du jour has been well overstated. USA Today has a great new story demonstrating that we actually have more than enough scientists and engineers. (Not that this hasn’t been pointed out before.) Most telling is the content in the article’s sidebar, which includes some real crisis-deflating stuff:
Detailed findings issued last year by the federally funded RAND National Defense Research Institute found “no evidence of a current shortage” of science and engineering workers. It said National Science Foundation predictions of shortages so far have proved “inaccurate.”
RAND. . . recommended a permanent commitment to monitoring the USA’s science and technology performance, but said the slow growth of U.S.-born technical workers “will change when the earnings and attractiveness of S&E (science and engineering) careers improve.”
So we actually have plenty of scientists and engineers, and the market appears to be working just as it should? I hope someone tells our leaders! Otherwise, they’ll almost certainly push even more kids into jobs that, it turns out, will probably only exist in the land of imaginary crises.
Some Thinking on “Cyber”
Last week, I had the opportunity to testify before the House Science Committee’s Subcommittee on Technology and Innovation on the topic of “cybersecurity.” I have been reluctant to opine on it because of its complexity, but I did issue a short piece a few months ago arguing against government-run cybersecurity. That piece was cited prominently in the White House’s “Cyberspace Policy Review” and — blamo! — I’m a cybersecurity expert.
Not really — but I have been forming some opinions at a high level of generality that are worth making available. They can be found in my testimony, but I’ll summarize them briefly here.
You Don’t Have to Be a Nuclear Engineer to…
…support market solutions in education, but apparently it helps.
Keith Yost, a grad student in MIT’s Department of Nuclear Science and Engineering and the Engineering Systems Division, has a great piece in his school’s newspaper. He explains that public schools have enjoyed a dramatic increase in per-pupil resources over the past 40 years, but ultimately failed to improve student achievement. He also explains why: resources are misallocated because of a lack of systemic incentives for their proper allocation — incentives that are inherent in the free enterprise system.
Unfortunately, Yost’s rationalist, systems approach is very different from that of most policymakers — perhaps because so few policymakers were trained as engineers. So maybe one way to accelerate the process of effective reform of American schools is to encourage more of our engineers to go into state politics. Think about it, Keith.
Alternatively, as Mothers’ Day is around the corner, perhaps the trick is for moms to encourage their kids to pursue science and engineering rather than go into that one career field that produces so many of our politicians (apologies to Waylon Jennings):
Mamas, don’t let your babies grow up to be lawyers.
Don’t let ‘em pick gavels or watch 12 Angry Men.
Buy ‘em some Lego and a protector for pens…
Comments on Criticism of Cato Ad
Our friends at www.realclimate.org and www.ryanavent.com have been taking shots at the statements in our ad, so I’d like to offer a little commentary.
We make three factual assertions.
First, we say that “surface temperature changes over the past century have been episodic and modest”. We cite Brohan et al., Journal of Geophysical Research (2006 and updates) and Swanson and Tsonis, Geophysical Research Letters, 2009. The first is the latest update of the East Anglia temperature history, which long has been the IPCC staple. It is the one most cited over the years by the IPCC because it was the first long history that contained much more than simply World Weather Records data updated with local records at the end of a month. At any rate, both it and other global histories indeed show modest warming, about 0.8degC from 1900-2000, and indeed it is episodic. Everyone (well probably almost everyone…there are some real people who don’t believe it is right) pretty much agrees that there are two periods of warming, 1910-45 and 1977-98, with a slight cooling in between and no trend after. If that’s not “episodic”, I don’t know what is. The Swanson paper in fact specifically quantifies these episodes. The paragaph near the end of it that says this may mean that warming will be faster than we thought was pure speculation. It could just have easily been argued (as I do) that the lack of recent warming more likely indicates that 21st century warming will be lower than forecast by oceanic feedback because lack of warming simply delays any water vapor amplification. Pure and simple.
The second assertion is that, “after controlling for population growth and property values, there has been no increase in damages from severe weather events”. The citation is short — a note in the Bulletin of the American Meteorological Society, by Pielke Jr. et al, 2005. The et al. numbers over ten other large-name scientists/analysts, and the reference list is the important part. There are a large number of citations on climate-related damages for various places and/or periods. We couldn’t list them all in this format, so we chose a single citation that could be consulted and an interested reader would find all the subsidiary supporting material.
Finally we state that “the computer models forecasting rapid temperature change abjectly fail to explain recent climate behavior”, citing Douglas et al., International Journal of Climatology, 2007, which showed the major disparity between forecasts of the upper tropospheric tropical “warm spot”, a hallmark of greenhouse projections, and observations in the radiosonde record. Yes it is true that Santer et al. have published a lengthy rebuttal, but it is extremely dense and marks just another go-round-and-round over this issue. Douglas et al. have a response but it hasn’t been published yet. The debate will go on and on. Further, it is quite apparent from comparing midrange multimodel estimates from the IPCC to observed temperatures, and those indeed projected for coming years, that there is a signficant disconnect developing between the models and surface temperature. They simply don’t anticipate multidecadal periods without warming. Oh yes, since this has happened, all of the sudden models can be forced to “explain” it, but that’s not prospective. Instead, it is retrospective adjustment. Such work wouldn’t be performed if there weren’t something wrong.
That’s more than enough to negate President-elect Obama’s statement that “The science is beyond dispute and the facts are clear”!
Week in Review: Bailout Bonuses, Marijuana and Eminent Domain Abuse
House Approves 90 Percent ‘Bonus Tax’
Sparked by outrage over the bonus checks paid out to AIG executives, the House approved a measure Thursday that would impose a 90 percent tax on employee bonuses for companies that receive more than $5 billion in federal bailout funds.
Chris Edwards, Cato’s director of tax policy studies, says the outrage over AIG is misplaced:
While Congress has been busy with this particular inquisition, the Federal Reserve is moving ahead with a new plan to shower the economy with a massive $1.2 trillion cash infusion — an amount 7,200 times greater than the $165 million of AIG retention bonuses.
So members of Congress should be grabbing their pitchforks and heading down to the Fed building, not lynching AIG financial managers, most of whom were not the ones behind the company’s failures.
Cato executive vice president David Boaz says this type of selective taxation is a form of tyranny:
The rule of law requires that like people be treated alike and that people know what the law is so that they can plan their lives in accord with the law. In this case, a law is being passed to impose taxes on a particular, politically unpopular group. That is a tyrannical abuse of Congress’s powers.
On a related note, Cato senior fellow Richard W. Rahn defended the use of tax havens in a recent Wall Street Journal op-ed, saying the practice will only become more prevalent as taxes increase in the United States:
U.S. companies are being forced to move elsewhere to remain internationally competitive because we have one of the world’s highest corporate tax rates. And many economists, including Nobel Laureate Robert Lucas, have argued that the single best thing we can do to improve economic performance and job creation is to eliminate multiple taxes on capital gains, interest and dividends. Income is already taxed once, before it is invested, whether here or abroad; taxing it a second time as a capital gain only discourages investment and growth.
Obama to Stop Raids on State Marijuana Distributors
Attorney General Eric Holder announced this week that the president would end federal raids on medical marijuana dispensaries that were common under the Bush administration.
It’s about time, says Tim Lynch, director of Cato’s Project on Criminal Justice:
The Bush administration’s scorched-earth approach to the enforcement of federal marijuana laws was a grotesque misallocation of law enforcement resources. The U.S. government has a limited number of law enforcement personnel, and when a unit is assigned to conduct surveillance on a California hospice, that unit is necessarily neglecting leads in other cases that possibly involve more violent criminal elements.
The Cato Institute hosted a forum Tuesday in which panelists debated the politics and science of medical marijuana. In a Cato daily podcast, Dr. Donald Abrams explains the promise of marijuana as medicine.
Cato Links
• A new video tells the troubling story of Susette Kelo, whose legal battle with the city of New London, Conn., brought about one of the most controversial Supreme Court rulings in many years. The court ruled that Kelo’s home and the homes of her neighbors could be taken by the government and given over to a private developer based on the mere prospect that the new use for her property could generate more tax revenue or jobs. As it happens, the space where Kelo’s house and others once stood is still an empty dustbowl generating zero economic impact for the town.
• Daniel J. Ikenson, associate director of Cato’s Center for Trade Policy Studies, explains why the recent news about increasing protectionism will be short-lived.
• Writing in the Huffington Post, Cato foreign plicy analyst Malou Innocent says Americans should ignore Dick Cheney’s recent attempt to burnish the Bush administration’s tarnished legacy.
• Reserve your spot at Cato University 2009: “Economic Crisis, War, and the Rise of the State.”
Filed under: Foreign Policy and National Security; General; Government and Politics; Law and Civil Liberties; Tax and Budget Policy
Wednesday Podcast: ‘The Science of Medical Marijuana’
Speaking at a Cato forum Tuesday, Dr. Donald Abrams, director of Clinical Programs at the University of California Osher Center for Integrative Medicine, discussed the science behind medicinal marijuana, and explained why the drug should be allowed for patients who suffer from a variety of symptoms.
After the event, Abrams spoke with Caleb Brown for Wednesday’s Cato Daily Podcast, explaining the promise of marijuana as medicine:
One of the reasons I am in favor of people using the plant is because… we no longer have a health care system in the United States, we have a disease management system, and it is very expensive largely due to pharmaceuticals. If there is a plant that is a medicine that people can grow for themselves in their own backyard then I think we can really go a long way to decrease some of the costs of health care. But if we are saying that a physician is going to be able to prescribe this entity to a patient then unfortunately, or fortunately depending on how you look at it, it does need to be regulated or approved and the only way to do that is through the standard route.
Filed under: General; Government and Politics; Health, Welfare & Entitlements; Law and Civil Liberties
Mr. President, If You’re Involved It’s Already Politicized
Yesterday, President Obama coupled his lifting of an executive order banning federal funding for embryonic stem cell research with the signing of a memorandum directing “the White House Office of Science and Technology Policy to develop a strategy for restoring scientific integrity to government decision making.” In other words, at the very moment he was directly injecting politics into science by forcing taxpayers to fund research that many find immoral – and that could be funded privately – Obama declared that he wouldn’t politicize science.
Don’t insult our intelligence. When government pays for scientific work that science is politicized. Yes, it could be argued that government not funding something is also political, but which is inherently more politicized, government forcing people to fund research, or leaving it to private individuals to voluntarily support scientific endeavors they believe of value?
You don’t have to be a scientist to grasp the obvious answer to that one. And as I’ve laid out very clearly regarding education, this kind of compelled support ultimately leads not only to ugly politicization, but social conflict and division.
Culture wars, anyone?
The rhetoric supporting federal funding of embryonic stem cell research – and lots of other science – may sound noble, but the means-ends calculations are anything but. They are divisive incursions on liberty, and make political conflict inevitable.
Filed under: Education and Child Policy; General; Government and Politics; Health, Welfare & Entitlements
Science: The Final (Budget) Frontier
There are many people who think that little or no “science” will get done — at least “basic” science that has no evident, immediate, practical applications — unless the federal government pays for it. That is a dubious proposition, but it’s not what really alarms me right now. What really troubles me is that scientists, apparently, can conceive of no end to research worthy of your hard-earned dollars, and see things in Washington looking a lot friendlier to their exploring the final, spending frontier. This quote from an article in Inside Higher Ed today says it all:
Pressed by [Rep. Alan] Mollohan and others for how much money the government ought to be spending on science research and education, [National Academy of Sciences President Ralph J.] Cicerone was clearly reluctant to throw out figures; danger loomed that he would look either greedy or unambitious in appearing to speak for the science establishment.
But he made clear that he would welcome a way of ensuring growth for federal spending on science, perhaps, he said, through a mechanism that tied spending to “the number of highly competitive proposals” agencies receive, to ensure that there is enough money to cover all research proposals that scientific peer review processes grade above a certain level.
When Mollohan asked what was the appropriate “end point” for growth in federal science funds, Cicerone said that “we are so far away from that level that it’s hard to say.”
So science can tell us a lot, but not how far we are from adequate science funding. I, however, can put it in a little perspective: In 2006 the federal government spent more than $31 billion on research at ”educational institutions.” If the funding end point is, say, Saturn, then to at least some scientists it seems we haven’t even gotten to the moon.
Get ready for scientists to blast off with your wallets anytime now.
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