History of IDEA
Jeannie Oakes, Founder and Former Director
Youth Voice in School Finance
NEW REPORT: Los Angeles' road to A-G for all
Without Dollars and Sense Powerpoint
Past Educational Opportunity Reports
New analysis shows serious flaws in LA Times evaluation of teacher effectiveness
- 02-10-2011
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Blog by Charles Kerchner/Huffington Post
Nearly half the rankings handed out to L.A. Unified teachers by the Los Angeles Times may be wrong. This is one of the conclusions reached by Derek Briggs and Ben Domingue of the University of Colorado at Boulder, who conducted a reanalysis of the data used by the Times in their value-added analysis of teacher performance. Using very strong language for the semi-polite world of social science, they concluded that the newspaper's teacher effectiveness ratings were "based on unreliable and invalid research." At issue here is validity of the original research conducted by Richard Buddin, the wisdom and responsibility of the Times in publishing individual teacher names, and the newspaper's response to the reanalysis. In a policy environment where value-added analysis is actively being considered as part of how teachers should be evaluated, the reanalysis results are a big deal. (more...)
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