OP here, responding in line.
I agree but... the point is that it is very easy for many families to avoid such a school. You can rent your place out and live IB for Deal for a few years, then move back, you can sell and in most cases get something really nice in the burbs (IB Hardy real estate is pricey), and for a smaller number of families, private is affordable, especially if it's just for MS and maybe HS. Those years typically correspond with peak or near-peak earnings for parents. It's the early years when parents are most likely to struggle to pay. Bottom line, there are numerous people who have avoided Hardy without great hardship, and without being Rockefellers either.
Yes, this is true. It is one of the hurdles faced by Hardy. But, the other side of the coin is that the IB demographics is, potentially, Hardy's greatest asset. Other posters have disregarded the cost side of the private school decision, saying why would you send your kid to school B if school A is better? You are ignoring the benefits side. Both matter. While the difference in cost between A and B may be immaterial to some IB parents, if the difference in benefits do not justify the difference in costs, Hardy will be the chosen option (at least on average, yada, yada, yada).
But even if you don't care about that, perhaps because you believe you and your kid can develop networks elsewhere, there is still a lot to academics beyond the test scores. Revisit your data. You see that "90 percent" DCCAS for a school does not mean that this is the average percentage score on the exam. It means this is the percentage of students who are proficient or advanced. But this (proficient) is a very, very low bar! Chosen because let's face it, DC is coming from a long way down. But for me, academics go way beyond these standardized tests. Even among schools boasting 90 plus, there can be big variations in the level of academic rigor and enrichment. And this in turn will mostly be a function of average levels of performance. It is all very well to focus on the "white" scores for your kids, but DCPS central office and the school admins will have a more divided focus, if your school is not uniformly high achieving.
There are several points here. First, the "proficient or advanced" bar is not unique to DCPS. MoCo uses it too and I saw enough indications that it is present at the federal level as well through NCLB. (I don't know this for sure.) Second, your proposed solution -- look only at advanced -- is subject to the same objections. Why not just consider the performance of the three highest scoring students? Clearly a line needs to be drawn somewhere. You object to where this line was drawn, but you'll see upon reflection that your objection is about a difference in degree not a difference in kind.
Third, my personal experience was that the overall school matters little to advanced students. I attended the largest public high school in a large state. My graduating class was around 1,000. However, all of my classes -- save, PE -- were with some subset of the same 90 kids. There could have been fires in the hallways during every period and it wouldn't have affected my classes one iota. So, no, I don't think the "divided focus" critique is particularly relevant.
Finally, you state that academics go way beyond standardized tests. This I cannot dispute and I have no counter-argument.
Anonymous wrote:
BTW all of this applies equally to Wilson as it does to Hardy, there I agree with OP completely.
Yes, indeed.
You seem to assume that people are irrational in avoiding Hardy.
I do not! (You aren't aware of it, but that's a damning accusation to throw at a game theorist.) I most certainly do not assume people are irrational. My post is motivated by a belief that there appears to be, at least for some, an information failure. Perhaps I'm also naive enough to think that discussing the empirical realities of MS performance (on this one, limited measure) with someone who has nothing at stake in the discussion may help ease the message along.
Suppose many IB parents decide to attend, only to have DCPS increase enrollment and thereby preserve OOB access and maintain the demographics as they are.
I've read this accusation before. There remains not a shred of evidence to support it. This claim should be dragged into a bathtub and drown.