Friday, April 06, 2007
Selective Opinion Gathering
Competition and Standards: Better Together
Panic! Some More
Jay Mathews hits all the standard notes--lead with crestfallen high school senior, dreams crushed by a blizzard of rejection letters, quote the outraged parent, pivot to the big picture, throw in some statistics, use words like "frantic" a lot.
The article also makes the same mistake the rest of them make, noting that "many students apply to as many as a dozen schools, often the ones least likely to accept them," without making the connection that this contradicts the idea that the admissions rate race is getting harder to run. Once more, with feeling: the overall difficulty of getting into an elite college is a function of two things. (1) the number of slots in elite colleges; and (2) the number of qualified applicants to elite colleges. Not applications. Applicants. If the same number of well-qualified applicants submits more applications for the same number of slots, admission rates will decline, but the odds of getting into college will not. The same is true if more people apply to elite schools who have no chance of getting in.
Mathews also throws in the delicously ironic but almost surely bogus idea that retired baby boomers will, in an act of cliche-confirming selfishness, be "shoving aside some of their children and grandchildren to take up university spaces" once they're retired.
Then, in the last four grafs, Mathews goes all Columbo by saying "Just one more thing--none of this really matters." The average college admissions rate is stable at 70 percent, you can always transfer, and research says it doesn't really matter where you go to college anyway. Great--but then why are we reading this article again?
Thursday, April 05, 2007
Panic! At the Rich Suburban High School
A: When the number has something--anything--to do with Harvard and the status anxieties the suburban upper-middle class.
In an uncharacteristic display of restraint, the Times ran it's annual exercise in college admissions scaremongering on Page A14 yesterday, but it remains the most-emailed article on this site as of 2PM today. Due to the "frantic" and "ferocious" competition for admission and an "avalanche of applications to top schools," this was "the most selective spring in modern memory at America's elite schools," resulting in "brutally low acceptance rates" at schools like Harvard, which accepted 9 percent of applicants, the "lowest admit rate in Harvard's history."
Nine percent! Man! Why, just last year, the admit rate at Harvard was....
Actually, it was nine percent then too.
Technically, 9.3 percent, as compared to this year's rate of 9.0 percent. Funny how that didn't make it into the article; I guess there just wasn't room with all those adjectives and adverbs. The Wall Street Journal made the same omission when it ran exactly the same story($) two days ago, although on the whole the WSJ piece had better data and did include previous-year data for other schools. Only Reuters provided the helpful context of how much Harvard's admission rate has changed when it ran exactly the same story a week ago.
These stories, which appear every year at the same time and with about the same degree of predictability as cherry blossoms in the Tidal Basin, are based on the premise that it is much, much harder than it used to be for smart kids to get into a top-flight college. But is that what the numbers actually say? It's true, as the Times article notes, that the number of high school graduates increased from 2.4 million in 1993 to 3.1 million last year. But that's a very selective timeline; 1993 and 1994 were--not coincidentally--the years with the fewest graduates since the early 1960s. One could just as easily note that the number of high school graduates today is almost exactly the same as it was 30 years ago.
Since the number of slots in elite schools is basically a constant, the real culprit is the denominator, the number of applications. An increase in applications isn't the same thing as an increase in applicants--if the same number of qualified applicants doubled the number of applications they submitted for the same number of slots, institutional admit rates would drop even though the odds of a given student being admitted would not. The article notes that students are filling out "ever more" applications, but seems not to notice, or care, that this undermines the logic of the piece.
Similarly, not all of the people who apply to Harvard have a realistic chance to get in. If the marginal increase in applications is disproportionately comprised of people who are treating the Harvard application like a $65.00 Powerball ticket, then falling admit rates are a mirage.
But there's no room for these kind of uncertainties when you're focused on scaring the bejeezus out of striving parents who wrongly believe that elite colleges are the alpha and omega of opportunity for their children.
Amazing Girls
I don't want to dismiss these girls' feelings--being a teenager is lousy no matter who you are, and I certainly would never want to go through that again--but failing to get into an elite university of your choice, while crummy in the near term, not only won't ruin your life, it's as issue that only impacts a tiny percentage of the teen population. The constant focus on the problems of a small subset of affluent, predominantly white students has real negative impacts on public debate about education in this country. Sure, it's stressful to feel like you have to take 5 AP classes and participate in a variety of extracurriculars--but a bigger problem is the larger numbers of young people who don't even have access to AP classes or the kinds of extracurriculars available to students at this high school.
The question of stress on teenage girls deserves a bit more consideration: One thing I didn't mention in the paper I wrote last year about educational gender gaps is that the improving achievements of young women--which are the major driver of gender gaps favoring girls in college-going and some other measures, because boys haven't lost ground--do seem to have come with a cost, in that girls (and not just privileged girls) report high levels of stress, more so than boys. Of course, it's possible young girls have always felt more pressure than boys to be perfect or, as a coach quoted in the NYT article says, please everyone. In the past, this might have meant hiding your intelligence and being meek and docile. Today, at least for daughters of professional parents, it means being accomplished and academically successful. I'm troubled we've set up a world where some girls (and I'm sure also some boys and plenty of adults) feel they have to please everyone, but a world where girls please people who are important to them by compiling accomplishments that have long-term educational and professional payoffs is still a better world than one where girls please others by doing things--playing dumb, getting pregnant--that have negative long-term impacts.
Reading this article, I couldn't help thinking about the paper I have out this week about parental anxieties around early childhood development and the growing market in educational infant and toddler toys and videos that claim--with little evidence--to help parents build "smarter" brains in their children. I'd be willing to bet that many of the girls who are stressed out about extracurriculars, AP, and getting into elite schools were raised in homes where parents worried about fostering their children's brain development and played classical music to stimulate neuron growth. And I suspect they'll grow up to be mothers who carry these same anxieties into raising their own children. At the same time there are enormous inequities and these girls have had opportunities, experiences that are dramatically different from those of their less-advantaged peers, and that have produced real academic and life outcome disparities that favor affluent girls.
As Annette Lareau illustrates compellingly in her book Unequal Childhoods these inequities are linked to dramatic differences in childrearing approaches between professional and disadvantaged families--and both approaches have costs for the families that use them and their children. I'd like to believe there's a possible world in which we can give all kids access to the benefits of the professional approach to childrearing--confidence, strong verbal skills, cultural competencies and knowledge--without some of the costs that appear to be associated with it, and with some of the benefits--strong family connections, independence, more free time for adults and children--that are connected with the less advantaged approach. Pipe dreams? Probably. But, while I'm older than the "amazing girls" and wasn't as amazing a teen as they, like them I was raised to believe in a world of limitless possibilities. So I'll keep hoping.
Universal Pre-K?
Tangentially: Joanne posts about a Tennessean article on "outsourcing parenting." I understand why this bothers some people, but it's worth noting that one of the benefits of modern economies is the achievement of greater efficiency through comparative advantage. There's no reason to believe this isn't also the case for at least some elements of child care and child rearing. I certainly have sympathy with folks who hire someone to teach their children to ride a bike, since I can't ride a bike, so if my hypothetical future kids are going to learn to ride a bike, I'll probably have to hire someone to teach them.
Wednesday, April 04, 2007
DC Schools Takeover: Probably a Good Thing
First, mayoral takeover creates a whole new kind of accountability. Critics of school-focused accountability systems like NCLB rightly note that the people writing the laws are never subject to the kind of tough accountability measures they impose on educators. And for various reasons--low voter turnout, fractured responsibility--people seem to get re-elected to urban school boards on a regular basis even when the schools are a dismally run as they have been here.
Mayoral takeover is different. Mayor Fenty is tying his political fortunes to school improvement in a deliberately high-profile way. That means that the smart people whose job it is to get him re-elected in 2010 won't be sleeping well the night before the 2009 test scores are released. Those kinds of incentives and pressures can be a good thing in a lot of ways.
Second, when mayors assume responsibility for the schools, they send an important message, both to the general public and the educators and students within the system: "Our schools are not a lost cause." Urban education and urban students have long been written off as irredeemable, victims of greater forces perhaps, but beyond saving in the end. That kind of attitude can infect the culture of a school system and become self-sustaining. Mayoral takeover send a very different signal: someone with a lot to lose is willing to take a risk on an uncertain but vitally important proposition. That's a good thing too.
Monday, April 02, 2007
Big Lending Speaks
First, Sallie Mae and its fellow big-lenders need to move on from trying to sway policy through lobbying pushes, public relations campaigns, and campaign contributions. Instead, it’s time they propose some policy solutions they would be willing to accept—solutions other than maintaining the status quo. There are already ideas out there for market-based methods to establish subsidy rates—for one example, check out New America’s loan auctions idea. Lenders will be better served in the long run by helping to design a system that allows market-forces instead of politics to establish subsidy levels.*
Second, let’s embrace the current dual-program structure rather than continue the endless back-and-forth between proponents of Direct Lending (in which the federal government provides loans to students directly) and the Federal Family Education Loan Program (in which private banks make loans to students, and the federal government subsidizes those loans). Granted, this dual-program structure is unusual, but the tension between the two programs is likely the best method of ensuring both are efficient, effective, and innovative. If either fails in one of those criteria, there will be lots of people calling for its removal, and another program ready and willing to take its place—that’s good motivation to stay competitive.
*Any good policy will balance the need for low subsidy levels with the need to keep smaller lenders in the student loan industry. Loan giants, like Sallie Mae, will be at a huge competitive advantage in any market system, and without special consideration for smaller lenders, a market-based policy risks pushing small banks out of the student loan industry. This would reduce options for students, and small, local banks that provide personal service are a great option to have. Also, industries that consist solely of corporate behemoths (think cell phones) generally don’t have five-star customer service.
Hell? No.
The tendency of some people to conflate the privatization, voucher, and charter movements is one of the more tedious things you have to deal with in talking about important issues like choice and the place of education in the public and private spheres.
To be clear, there really are people out there who want to privatize and destroy the public schools. They're all voucher supporters, and a lot of them are quite sympathetic to charters, not because they actually care about--or even understand--charters per se, but because they see charters as a step in their direction. I don't know that I'd go so far as to condemn them to Hell, but they're no friends of public education
But tarring charter schools with other people's bad intentions is wrong. The commonly-made distinction between charter schools and public schools is inaccurate; charter schools are public schools. I guarantee that if you were teleported into the classroom of a good charter elementary school here in DC, there would be nothing to tell you that it was anything other than a particularly well-run public school. Same predominantly minority and low-income DC kids, same base funding source, same accountabily under No Child Left Behind. If, on the other hand, you were teleported into a DC private school, believe me, you would know.
Friday, March 30, 2007
The Unions Come Clean
Leo alleges that the Clotfelder, Ladd, and Vigdor (CLV) study cited in the previous post refutes the findings and recommendations in the Education Sector paper Frozen Assets. Nonsense. Frozen Assets said, "while salaries for teachers typically increase throughout their careers, research suggests that teacher effectiveness in the classroom does not increase on a similar trajectory."
That is precisely what the CLV study says:
Compared to a teacher with no experience, the benefits of experience rise monotonically to a peak in the range of 0.092 (from model 4) to 0.119 (from model 5) standard deviations after 21-27 years of experience, with more than half of the gain occurring during the first couple of years of teaching.The study found that teachers gain more effectiveness in the first two years than in the entire rest of their career. Yet experience-based salary schedules increase pay on more or less a straight line from year 1 to year 30, i.e. not a "similiar trajectory."
Leo notes that in states like New York, Master's degrees are required for teachers to gain full certification, so it's reasonable for unions to want teachers to be paid for the credential. Sure--except last time I checked, which was when I worked on education policy for a state legislature, teachers unions wield a great deal of influence over education policy in state legislatures. Or is all that lobbying money being wasted? That's why I originally asked why unions don't go to the "bargaining table and/or state legislature" to fix the Master's degree problem.
But then Leo actually does give the answer, which is worth quoting in full:
There is, morever, an important educational reason for teacher unions to support the retention of the Masters degree requirement, beyond the concerns of fairness and reasonableness. Teacher unions are avid supporters of the full professionalization of teaching, and we understand that every profession needs a rigorous induction process, including a full foundational education. All of the significant and powerful professions in American life, such as law and medicine, require a graduate education as an entry gate-keeper into the profession. Our problem is that far too many undergraduate and graduate teacher preparation programs in schools of education fall far short of professional teaching standards, and do precious little to prepare novices for the challenges of teaching. If teaching is to advance as a profession, and if the quality of American education is to be improved significantly, the quality of teacher preparation programs must also be dramatically improved. Rather than eliminating the Masters degree requirement for teaching licensure, we must make it a more meaningful and useful part of an essential teacher education. That option may not be a prohibitive favorite at the races, but it certainly beats a bet on a dead horse.If, in the future, you're ever trying puzzle through why a particular teacher policy issue is so irrational and hard to resolve, go back and read this paragraph. The "professionalism" agenda is so vital that it takes precedence over "concerns of fairness and reasonableness." Sure, the teacher preparation programs are doing a bad job (not just at providing in-service Master's degrees; Leo helpfully expands the indictment to preparation of novice teachers as well). Sure, the prospects for improving them seem grim. Sure, this sucks for teachers. But there are more important things to consider.
The professionalism agenda is an artifact of the iron triangle of teacher policy that exists in every state, with teachers unions, schools of education, and state certification boards sitting at the vertices. There's nothing wrong with professionalism as an idea, but in the case of education, research keeps showing that the tools of teacher professionalism--degrees, state certification, most professional development programs, etc.--have little or no impact on teacher effectiveness. That shouldn't be surprising, since the various processes and organizations in questions have been deliberately disconnected from any objective evidence of student learning.
Without being so grounded, they have inevitably become completely self-justifying. Therefore, the only defense against charges of ineffectiveness is to defend the idea, institutions, and processes of professionalism as ends unto themselves. Just as student interests in education are too often subordinated to adult interests, teacher interests are too often sacrificied to larger organizational interests.
Mystery solved.
Update: Sherman Dorn provides an interesting historical perspective on the meaning of professionalism and how it relates to teaching and public education.
Thursday, March 29, 2007
Teacher Voice on Master's Degrees
1) Unions like the AFT are supporting progams right now in places like New Mexico that expand the kinds of professional development for which teachers can receive salary increases beyond Master's degrees.
Good point, that's certainly true.
2) "The purpose of the Master’s degree is to provide a teacher with appropriate professional development. The effort to achieve this development and the results from it are what justify the increase in compensation that teachers typically accrue from it."
Ed doesn't dispute the research findings that there are no "results" from Master's degrees (although he only concedes that the degrees are "imperfect"). So all we're left with is rewarding teachers for "effort"--even though it's wasted effort. If that's the policy, why not at least let teachers themselves decide what kind of unrelated-to-effectiveness-in-the-classroom activity we're going to pay them for? Running a marathon takes a lot of effort (and less money out of pocket), why not give them a permanent salary bump for that? What's the difference?
3) "it’s just a good idea to try to link pay to professional development."
Even professional development that doesn't work?
4) Questions like that are the equivalent of "when did you stop beating your wife?"
Well, that sort of depends--and let me stress that Ed put this metaphor on the table, not me--on whether you are beating your wife, doesn't it?
5) Reallocating money currently being squandered on Master's degrees for better purposes would be a "tremendous political trap."
Huh? Why? Seriously, what are the political pitfalls here? It would be good for everbody except for ineffective graduate education programs, and last I checked they don't have some kind of wealthy PAC (although that would be sort of fun) or bigfoot lobbying organization. Help me understand.
Update 1: Sherman Dorn responds here, and makes the point that education schools ain't exactly thrilled about teaching students who don't want to be there. Fair point. It's also worth noting that education schools don't get to keep all that money that pours in from in-service teachers. Ed schools are the financial breadbasket for a lot of universities, taking in large amounts of revenue that then gets distributed elsewhere in the university. At one point, both of my parents were teaching at a public university, one in the computer science department, the other in the school of education. One of them taught twice as many classes as the other and got paid half as much. Any guess which was which?
Update 2: In an update to his previous post, Ed says I'm quoting him out of context, because what he really meant was...actually, he doesn't explain that. Okay, I'm happy to let readers draw their own conclusions on this one.
Radio Silence from Teachers Unions
Let me also officially extend the challenge to anyone from the teacher education community who wants to weigh in. The more the merrier. In the meantime, here are some selections from the Quick&Ed mailbag to tide you over. One former teacher wrote:
It's not only that Masters degrees add no value for high cost, they also are a real pain in the [butt] for teachers themselves, which is why I can't figure out why the unions defend this. As a young teacher, you have to spend money and significant time away from your family AND YOUR JOB to take those classes --- time you could be spending to grade papers, communicate better with parents, help individual kids after school, hone lesson plans, learn from or collaborate with colleagues ... NO ONE benefits from this.And from a current graduate student:
I am so glad someone finally said this out loud.
I am currently a part-time M.Ed. student, and because my current class (History of American Education & Social Policy) is a requirement fulfillment for both students like me and those teachers who are getting their Masters in Curriculum & Instruction, Elementary Education or Administration & Supervision, I have begun to notice a dividing line between those who are there for the general advancement of personal knowledge (like me) and those who are there because it’s a next step (teachers).
I have the hardest time in the class, where I am so excited to be every Wednesday, understanding why these teachers would choose to spend $2,500 per class to get a degree that they don’t really want or feel that they need. They have said “My principal thought this was a good idea” – they know that it’s not truly going to help them on a day to day basis, but they’re doing it anyway. I don’t want to say that the teachers in my class are greedy or just in it for the pay bump, but there seems to be a disconnect between the passion for learning that they want to impart on their students and their own passion for educating themselves (and I’m certainly not saying that the non-teachers in our class are purely in it for knowledge’s sake – I’d be lying if I wasn’t expecting my degree to give me a pay increase down the line).
I know that I would never make a good teacher, so I am truly grateful for those men and women who are. But why would the union promote actions that aren’t furthering the purpose of providing a great education to those in their member’s classrooms? I just find that really incongruous.
This raises an important point, which is that schools of education do a lot more than train teachers. They also teach about education, and it's perfectly reasonable to think the an in-service teacher would want to learn more about their profession, and could get a great deal out that experience.
The problem is that the current system doesn't allow teachers to make that choice. Instead, it requires them to go back to school, whether they want to or not, in order to get the maximum possible salary. Since teachers aren't paid very well, a lot of them have no option but to slog through a master's degree program that often has little or no connection to either their personal interests or their professional effectiveness.
Again: why do unions, who represent the interests of teachers, not only put up with this, but actively promote it?
The Dark Side of Freakonomics
The article also has the funniest chart footnote I've read in a while (admittedly, the bar isn't high): "Standard errors available upon request."
Wednesday, March 28, 2007
A Question for Teachers Unions
It makes a certain kind of sense for unions to support things like seniority raises, tenure, bumping rights, generous retirement benefits, etc. I may not agree with the union position on all of these issues, but the union position is at least rational from the perspective of representing the interests of some or all union members.
Master's degrees are different. Teachers get those other benefits automatically in return for doing their job. Master's degrees exact a significant cost from teachers, both in time and money. To get one, you have to pay tuition, go to class, and spend a lot of nights and weekends away from your family. Since teachers don't get paid very well and many of them have children, these costs are considerable.
Yet if there's one thing that all the research studies out there agree on, it's that there is no relationship between having a Master's degree and classroom effectivenes. In fact, the latest large-scale study on the issue found--incredibly--that teachers who go back to get a Master's degree after starting teaching are actually less effective than those who don't. From "How and Why Do Teacher Credentials Matter for Student Achievement?" by Clotfelder, Ladd, and Vigdor:
The estimates indicate that the teachers who received their [Master's] degree prior to entering teaching or any time during the first five years of teachers were no less or no more effective than other teachers in raising student achievement. In contrast, those who earned their master’s degree more than five years after they started teaching appear to be somewhat less effective on average than those who do not have master’s degrees. Whether this negative effect means that those who seek master’s degrees at that stage in their career are less effective teachers in general or whether having a master’s degree makes them less effective cannot be discerned with complete confidence from this analysis. The observation that the earlier master’s degree has no effect, however, suggests that the negative sign is more attributable to who selects into that category than to any negative effect of the degree itself.So Master's degrees either reward teachers who were already worse, or they make them worse.
Given this, why don't unions go to bargaining table and/or state legislature and change the salary schedule so that all the money that currently goes to support salary bumps for Master's degrees ($8.5 billion nationwide according to this estimate) is reallocated for other purposes, like increased minimum salaries, lower health insurance co-pays, or what have you? That would be a net gain for union members, because they wouldn't have to expend the time and money that Master's degrees require.
Alternatively, why don't unions go to the local university--I'm guessing that for any given school district, most in-service master's degrees are earned at relatively small number of local colleges and universities--and say something along the lines of "Hey, in exchange for our time and money, could you give us something that actually helps us be better teachers?"
Leo Casey? AFTie John? Anyone?
Tuesday, March 27, 2007
Rankings Revolt?
Levin said that although he disagrees with the magazine’s misleading use of quantitative measures to evaluate schools, he would not support a movement to eliminate college rankings completely. “If the letter says abolish any attempt by the press to characterize strong versus weak colleges, I would be opposed to that,” Levin said. “Schools have to be accountable, and it’s part of our tradition of free press to have external evaluators of the performance of our schools.”
On the one hand, this is refreshing. Condemnation of U. S. News is a mandatory part of polite conversation in higher education policy circles, the kind of "of course we all agree" thing you say as a preface to some other point. That's because higher education likes to operate on the polite fiction that every college and university is equally good in its own special way, that there's a fine college out there for every student, and that the whole admissions process is--or should be--just about finding the right "fit" between sui generis colleges and equally unique students. The whole idea of evaluating institutional quality on a common scale or in a comparable way is felt to be a betrayal of some higher ideal.
This is, of course, nonsense, and it's good to hear a college president say so publicly, and to even utter the "A-word"--accountability--in the process. It doesn't happen very often.
On the other hand, Yale's interest in the U.S. News rankings is obvious. It would be weird for them to boycott a rankings system that annually tells the world something that they surely believe is true: Yale and its Ivy League ilk are the greatest. While the U.S. News rankings are based on a complex, multi-variable formula, they're best understood as a relatively straightforward process of determining degrees of difference from Yale, Princeton, and Harvard. The more like them you are, the higher you're ranked.
The problem is that most institutions, particularly public institutions, aren't meant to be like Ivy League schools, and it's silly to rate them in that way. So if Yale really wanted to help topple the U.S. News regime--which can't be accomplished by a boycott, since it's a free country and U.S. News can publish whatever it likes, plus most of the data used in its rankings are publicly available and can't be witheld by colleges even if they wanted to--then Yale should take the bold step of proposing and then participating in some process whereby it publicly discloses how well it teaches its students and how much they actually learn while they're in college. That would be a revolution.
Limits of Evidence from Abroad on Vouchers
Coulson admits that Chile's voucher program, while expanding the number of private schools, has done so much more for upper-income and middle-class, rather than poor, children. But he blames this on details of the program and promises that, in time, as the number of private schools grows, they will eventually serve more poor children. Leave aside that it's not clear this would be desirable, since poor students in Chile's private schools perform less well than those in its public schools. Chile's voucher program has been in place since the early 1980s; at some point believing Coulson's promise that, if we just wait a little longer for the market to work, we'll finally start to see quality private schools serving poor kids in Chile, becomes an awful lot like believing the Bush administration when they say things will eventually turn around in Iraq. There's another novel aspect to this argument, in that voucher proponents often argue--and I think that this is one of their most compelling claims--that we need to give kids more choice NOW because they can't afford to waste time in failing schools while we try to fix the existing system. But Coulson is arguing that, well, maybe the kids need to wait a little longer for the market to work. Doesn't this "wait a little longer and maybe it will work" argument sound oddly familiar?
Coulson doesn't even engage with my argument that the situation of the Netherlands is fundamentally different from that of the United States in ways that make it unhelpful as an example here. Unlike the U.S., several European countries have systems of separate public schooling for children from different religious groups, because of the history of religious strife in this country. The way the Netherlands happened to structure this system in the early 20th century resembles what we would call a voucher. But that does not mean that introducing vouchers into the American system today will produce a significant number of new, high-quality choices for poor kids.
Coulson argues that my unfamiliarity of voucher programs in Denmark and Sweden should somehow disqualify me from talking about school choice policy in the United States, despite the fact that I've spent a significant amount of my professional career studying voucher, charter and other choice issues in this country. This is silly on its face: Exactly how many countries should one know about choice in to be qualified to comment on it? Moreover, it's disingenous: Coulson knows a lot about choice in Denmark, Sweden, etc. because he's spent a lot of time trying to find examples that will support his ideological support for vouchers, not because he's seeking a comrehensive understanding of the world's experience with educational choice from some neutral scholarly position.
I don't mean this as an attack: Questions about the role of choice and diverse delivery models in public education are both empirical and ideological questions. The ideological questions are just as important as the empirical ones, and we shouldn't shy away from them in the name of being evidence-based. But that ideological component also means that Coulson and I will never be able to come to an agreement, based on evidence, about certain issues related to vouchers, because we have very different views about the ultimate goals of educational policy. He's much more interested in expanding choice, whereas I'm much more focused on expanding the supply of high-quality schools serving poor kids. Sometimes those goals support each other. But they are not the same thing and it does not do to pretend that existing evidence shows choice alone will create significant numbers of high-quality new school choice options for poor kids.