Measuring the Impacts of Teachers II: Teacher Value-Added and Student Outcomes in Adulthood
Raj Chetty, John Friedman, Jonah E. Rockoff
American Economic Review 104(9): 2633-2679, 2014
September 2014

Are teachers’ impacts on students’ test scores (“value-added”) a good measure of their quality? This question has sparked debate partly because of a lack of evidence on whether high value-added (VA) teachers improve students’ long-term outcomes. Using school district and tax records for more than one million children, we find that students assigned to high-VA teachers are more likely to attend college, earn higher salaries, and are less likely to have children as teenagers. Replacing a teacher whose VA is in the bottom 5% with an average teacher would increase the present value of students’ lifetime income by approximately $250,000 per classroom.



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