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Popperian chutzpah
I have no idea whether Andy Rotherham is correct in claiming that the Economic Policy Institute paper on value-added scores and teacher evaluation is marginal to the current policy debate. The historian in me wants to talk about contingency and the human vulnerability to confirmation bias, and it seems the EPI paper follows one line […]
Please leave your magic numbers on the magic carpet with the magic wand
The shorter Bill Tucker: "No, you pull a number out of the air." Well, buckaroos, if anyone's going to be all airy-fairy on this quantitative-component teacher-evaluation thing, it's going to be all Ivory Tower, historian me. But I don't think you'd like that. Maybe I should explain. Tucker's argument in a nutshell is, "Okay, if […]
EPI publishes white paper on value-added/growth measures and teacher evaluation
Just after midnight, the Economic Policy Institute released a relatively short white paper coauthored by ten well-known researchers, Problems with the Use of Student Test Scores To Evaluate Teachers. Key passage from the executive summary: A review of the technical evidence leads us to conclude that, although standardized test scores of students are one piece of […]
Long-term question on RTTT: Teacher evaluations
…a widgetized evaluation system is no better and in many ways much worse than a widgetized salary system…
Not exactly covered with glory in L.A.
The big K-12 story this week is the L.A. Times series on value-added measures of intermediate and middle-school teachers in reading and math in the Los Angeles Unified School District. My brief impression: I don't think anyone in L.A. is covering themselves in glory this week. Folks such as Alexander Russo and Rick Hess have […]