Teacher Data Reports - 4000 Unreliable, 100% Wrong | Edwize - 0 views
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Jeff Bernstein on 21 Mar 12The Daily News reported yesterday that fully 1/3 of the Teacher Data Reports - 4000 reports - are unreliable. And just to add a little context: They all have multiple years of data, which are supposed to be more reliable. Hundreds and hundreds have margins of error of less than 10 percentage points - five on either side - giving the public, parents, and teachers assurances that these reports are quite correct. In fact, the DOE was so confident in its findings that 46 of these reports had no margins of error at all! That's 4000 reports. And that means since teachers are ranked against each other, that all the reports are unreliable. Or, let's just get right to it: "unreliable" is a euphemism for wrong.