Jonah Rockoff Testifies at NJBOE: Part II
Here's Part I of this series: Rockoff talks teachers and baseball.
Let's get back to Jonah Rockoff's testimony at the NJ State Board of Education.
Let's get back to Jonah Rockoff's testimony at the NJ State Board of Education.
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Rockoff's most famous piece of research is a paper he coauthored with Raj Chetty and John Friedman that was released last year: "THE LONG-TERM IMPACTS OF TEACHERS: TEACHER VALUE-ADDED AND STUDENT OUTCOMES IN ADULTHOOD" It is admittedly a fascinating piece of work, and I certainly wouldn't argue with its conclusions: teaching quality does matter and yields small but real and (somewhat) lasting effects in a student's life.
No, the problem with Chetty, Friedman, Rockoff isn't the paper itself; it's how the paper's conclusions were abused. As both Matt DiCarlo and Bruce Baker pointed out at the time - and as the paper itself cautioned - there was no reason, based on this study, for policy makers to start firing teachers based on their value-added scores.
Rockoff's most famous piece of research is a paper he coauthored with Raj Chetty and John Friedman that was released last year: "THE LONG-TERM IMPACTS OF TEACHERS: TEACHER VALUE-ADDED AND STUDENT OUTCOMES IN ADULTHOOD" It is admittedly a fascinating piece of work, and I certainly wouldn't argue with its conclusions: teaching quality does matter and yields small but real and (somewhat) lasting effects in a student's life.
No, the problem with Chetty, Friedman, Rockoff isn't the paper itself; it's how the paper's conclusions were abused. As both Matt DiCarlo and Bruce Baker pointed out at the time - and as the paper itself cautioned - there was no reason, based on this study, for policy makers to start firing teachers based on their value-added scores.
