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DC Public and Public Charter Schools
Reply to "DCPS Central Office Cuts"
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[quote=Anonymous][quote=Anonymous]scores are lower at higher poverty schools where test scores are lower because IMPACT pretty heavily weighs test scores[/quote] IMPACT scores are not based on raw test data though. They are based on how much growth a student is predicted to make based on the previous year’s test scores. So a student who scored a 99 last year and scores a 99 again this year doesn’t get their teacher higher impact scores because that is the predicted score for that kid. A kid who scored a 30 last year and scores a 50 this year gets their teacher a bump in points because they were predicted to score another 30 but got a 50. That 20 point growth is seen as the individual teacher’s impact on their learning. Obviously there are still issues with this algorithm but it’s not just that teachers in Ward 3 get higher IVA scores.[/quote]
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