When Does Holding Teachers Accountable Go Too Far?

David Leonhardt:

The start of the school year brings another one of those nagging, often unquenchable worries of parenthood: How good will my child's teachers be? Teachers tend to have word-of-mouth reputations, of course. But it is hard to know how well those reputations match up with a teacher's actual abilities. Schools generally do not allow parents to see any part of a teacher's past evaluations, for instance. And there is nothing resembling a rigorous, Consumer Reports-like analysis of schools, let alone of individual teachers. For the most part, parents just have to hope for the best.

That, however, may be starting to change. A few months ago, a team of reporters at The Los Angeles Times and an education economist set out to create precisely such a consumer guide to education in Los Angeles. The reporters requested and received seven years of students' English and math elementary-school test scores from the school district. The economist then used a statistical technique called value-added analysis to see how much progress students had made, from one year to the next, under different third- through fifth-grade teachers. The variation was striking. Under some of the roughly 6,000 teachers, students made great strides year after year. Under others, often at the same school, students did not. The newspaper named a few teachers -- both stars and laggards -- and announced that it would release the approximate rankings for all teachers, along with their names.

The articles have caused an electric reaction. The president of the Los Angeles teachers union called for a boycott of the newspaper. But the union has also suggested it is willing to discuss whether such scores can become part of teachers' official evaluations. Meanwhile, more than 1,700 teachers have privately reviewed their scores online, and hundreds have left comments that will accompany them.

Posted by Jim Zellmer at September 6, 2010 2:17 AM
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