When you don’t have all grades…
One more idea: what to do with districts that aren’t unified—do not have students in all grades? There are bunches of districts in Texas and Massachusetts, for example, that have only elementary or only secondary grades. The iterative process for estimating student net flows relies on the whole grade span in two different ways—you need […]
Net-flow SAS test files
After talking with my colleague John Ferron, I’ve tried to use the SAS DATA step to calculate the net-flow rates and then to vary the retention-rate estimates randomly around the official figures, to see how that changes the results.