Friday, April 27, 2012

Link between value-added ratings and classroom observations is modest at best, studies show - D.C. Schools Insider - The Washington Post

Link between value-added ratings and classroom observations is modest at best, studies show - D.C. Schools Insider - The Washington Post:


Link between value-added ratings and classroom observations is modest at best, studies show




Here’s a statistical postscript to the story of Sarah Wysocki , the MacFarland Middle School teacher fired by DCPS last year after she earned good classroom observation scores on IMPACT’s Teaching and Learning Framework, but low value-added marks on student test results.
Ideally, there would be a healthy statistical link between the value- added and TLF scores. That would provide some solid evidence that following DCPS prescriptives in the classroom leads to higher student achievement on standardized tests.
“Nationally the hope is that there is a strong correlation between a