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Thursday, November 12, 2015

AERA Growth for Teacher Eval

The American Educational Research Association is warning schools against using value-added scores when they make high-stakes decisions about teachers.

Value-added scores aim to measure the impact a teacher or teacher preparation program has on student achievement. But from a research perspective, it's very difficult to successfully isolate teachers and their training programs from the myriad other factors that play into how students perform on tests, AERA said in a new policy statement.

In fact, the conditions needed to make VAM scores accurate can't be met in many cases, according to the statement.

"This statement draws on the leading testing, statistical, and methodological expertise in the field of education research and related sciences, and on the highest standards that guide education research and its applications in policy and practice," said AERA Executive Director Felice J. Levine. 

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