Anonymous wrote:When compared to the high-performing DC public schools (I know there are not many), these charters don't look very promising at all. I know there must be a lot more to a good school than scores -- would someone like to pitch in on what makes some of these star schools so loved?
Test scores are highly correlated with SES. The population of the charters is considerably more diverse (in terms of SES, race, and ethnicity) than the WOTP high-performing DCPS schools (assuming that those are the high performers you are referring to). Families can buy their way (via real estate purchase/rental) into high-performing DCPS schools, and they cannot do the same for charters. Additionally, many of the charters are still very "young" in terms of school age, and are not yet testing full cohorts of kids who've been all the way through the school.
In short, your individual high SES kid will likely have the same test score whether he's at Janney or E.L. Haynes. But the aggregate scores of those schools are very different due to the factors listed above.