Watching Pearson: A Micro-Documentary by Todd Finley
Trump's imperialist dreams
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All he wants for Christmas is Greenland, Canada, and the Panama Canal
1 hour ago
[I]f you were to hear about this report only from the staunchest, most ideological opponents of VAM, you would think it says something else entirely. Valerie Strauss, for instance, claims the report “slammed” the use of VAM to evaluate teachers and Diane Ravitch seems to think it is a “damning indictment” of such policies.The report itself is not nearly so hyperbolic.For a useful summary check out Stephen Sawchuk, but the report itself is a mere seven accessible pages so I encourage you read it yourself.The bottom line for the ASA is that they are optimistic about the use of “statistical methodology” to improve and evaluate educational interventions, but current value-added models have many limitations that make them difficult to interpret and apply, especially when evaluating individual teachers.