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by asoneth 1726 days ago
To be clear, I am not arguing in favor of teachers unions or short-sighted politicians. I am not arguing that our education dollars are being well-spent since it is clear that we are spending more to get worse results. I am not arguing that increased funding has a bigger impact than improving discipline.

But it does seem logical to me that given a set of students, some of them will end up costing more than others. To give a trivial example, a student who repeats a grade costs more to educate than a student who skips a grade, just by virtue of spending an extra two years in the system. Similarly, it seems logical to me that students who can't afford lunch, need additional ESL or special-needs teachers, are physically handicapped, are violent, etc will cost more than the average student. (And sure, kicking that violent kid out lowers your costs, but it simply shifts that cost to the juvenile detention system.) Assuming the above is true, any school that is able to attract slightly more low-cost students or discourage slightly more high-cost students (however they are able to do so) should enjoy substantial cost savings.

> some charter schools are working phenomenally well for the underprivileged and doing so with less funding

I do not dispute that there are positive examples. From the statistical analysis I can find the overall effects seem mixed: in some states charter-school students do better (on average) than public school students, in some states worse, and in some states like Ohio there's simply more variance between charter school students. And since I do not know is what this effect is due to I'm not sure to what degree this approach scales. For example, do charter schools work equally well in a region where there are no more public schools left for them to dump difficult students onto?

One way to test this would be to randomly assign a population of students into a public school system and a charter school system, give them the same funding, and require that each system accommodate even the most difficult students who have special needs or disciplinary issues. (Not necessarily in the same classes, just that they are responsible for their education.) If charter schools have better educational outcomes in such an experiment then I would find that truly compelling.

I think it's absolutely useful that states are taking such different approaches to charter schools though, and I think eventually that will give us the data we're looking for.