Data Analysis of Value Added Teacher Ratings Shows They’re Useless
Would you use this data to rate a teacher’s performance?
The New York Times released “value-added” data for 18,000 elementary school teachers in New York City recently, joining the Los Angeles Times, which released data for LA teachers last year. But unlike in LA, the New York Times allowed the data itself to be released, allowing analysts to really dive in and look at the performance assessments and whether or not they make sense. There’s been a raging argument about whether this “value-added” metric successfully measures teacher performance. And this release of data, when you
