Audrey Amrein-Beardsley reports here on new research by Steven Klees of the University of Maryland, which concludes that the contribution of individual teachers to student learning cannot be isolated or quantified as “value-added modeling” claims to do.

Accumulating evidence continues to demonstrate that the teacher evaluation systems imposed by Arne Duncan in the Race to the Top is invalid, inaccurate and unreliable. How many teachers and principals have been fired because of these flawed metrics?

Open the article for her many links.

She writes:

The Educational Researcher (ER) journal is the highly esteemed, flagship journal of the American Educational Research Association. It may sound familiar in that what I view to be many of the best research articles published about value-added models (VAMs) were published in ER (see my full reading list on this topic here), but as more specific to this post…