Reign Of Error: The Publication Of Teacher Data Reports In New York City. – M. Di Carlo

Di Carlo, Matthew. “Reign Of Error: The Publication Of Teacher Data Reports In New York City.”  The Shanker Blog. February 27, 2012. Retrieved from: http://shankerblog.org/?p=5189#comment-27889

This is a very in-depth look at the Value-Added data applied to teachers in NYC and subsequently published in the Times and Post.  The margin of error for some teachers was 63 points meaning a teacher could have been labeled “Above Average”, “Average”, or Below Average”.

In any case, if there’s a bright spot to this whole affair, it is the fact that value-added error margins are finally getting the attention they are due.

So, I’m also hoping that more people will start asking the big question: If the error margins are important to consider when publishing these estimates in the newspaper, why are they still being ignored in most actual teacher evaluations?

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About dublinea
President - Dublin Educators' Association

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