Education Week: 'Value Added' Measures at Secondary Level Questioned - 0 views
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Jeff Bernstein on 01 Nov 12"Academic tracking in secondary education appears to confound an increasingly common method for gauging differences in teacher quality, according to two recently released studies. Failing to account for how students are sorted into more- or less-rigorous classes-as well as the effect different tracks have on student learning-can lead to biased "value added" estimates of middle and high school teachers' ability to boost their students' standardized-test scores, the papers conclude."