Take your SGP and VAMit, Damn it!
In the face of all of the public criticism over the imprecision of value-added estimates of teacher effectiveness, and debates over whether newspapers or school districts should publish VAM estimates of teacher effectiveness, policymakers in several states have come up with a clever shell game. Their argument? We don’t use VAM… ‘cuz we know it … Continue reading Take your SGP and VAMit, Damn it!