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October 11, 2013 06:15 pm PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/Wp9lGhZWviE/story01.htm
American education's use of "value added measures" is statisticallybankrupt
American teachers are widely assessed on the basis of "value added measures," a statistical tool for analyzing the outcomes of their teaching.Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/Wp9lGhZWviE/story01.htm
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