Put very simply – Achievement First Charter schools DO NOT SERVE STUDENT POPULATIONS COMPARABLE TO DISTRICT POPULATIONS.
I have explained previously how this is relevant to broader policy discussions. Specifically, it is relevant to the claim that these schools can serve as a model for expansion yielding similar outcomes for all children in New Haven, Bridgeport or Hartford. In very simple terms, there are not enough non-low income, non-disabled and non-ELL kids around in these settings to broadly replicate the outcomes that these schools may be achieving. Again, this public policy perspective contrasts with the parental choice perspective. While from a public policy perspective we are concerned that these outcomes may be merely a function of selective demography, from a personal/parental choice perspective within any one of these cities, the concern is only for the outcomes, and achieving those outcomes by having a desirable peer group is as desirable as achieving those outcomes by providing higher quality service.