PM
The study seems to indicate that at least one scool was redifined from centrist to MO. This would bolster your point that some of the decline in in the centrist bacame yeshivish. However as I mentioned there does not seem to be any increase in the numbers of students in the classes present in both surveys. Bottom line sice the two sureveys did not rigorousely maintain the same classificaitons using them to derive a growth rate is not ideal.
I am not sure what you mean “The only hardnumbers provided so far ..” we are debating whether my numbers (grade to grade growth) are more accurate or your numbers (census to census growth with a centrist conversion). You may disagree with me but I don’t think it is fair to say that the nunmbers provided weaken my case. In fact you have not even adressed the grade to grade growth rate you simply provided a speculative alternate set of numbers.