How Much Does Teacher Quality Vary Across Teacher Preparation Programs? Reanalyses from 6 States

31 Pages Posted: 28 Jun 2017 Last revised: 12 Mar 2018

See all articles by Paul von Hippel

Paul von Hippel

University of Texas at Austin - Lyndon B. Johnson School of Public Affairs

Laura Bellows

Duke University - Sanford School of Public Policy

Date Written: January 14, 2018

Abstract

At least sixteen US states have taken steps toward holding teacher preparation programs (TPPs) accountable for teacher value-added to student test scores. Yet it is unclear whether teacher quality differences between TPPs are large enough to make an accountability system worthwhile. Several statistical practices can make differences between TPPs appear larger and more significant than they are. We reanalyze TPP evaluations from 6 states — New York, Louisiana, Missouri, Washington, Texas, and Florida—using appropriate methods implemented by our new caterpillar command for Stata. Our results show that teacher quality differences between most TPPs are negligible — .01-.03 standard deviations in student test scores — even in states where larger differences were reported previously. While ranking all a state’s TPPs is not useful, in some states and subjects we can find a single TPP whose teachers are significantly above or below average. Such exceptional TPPs may reward further study.

Keywords: accountability, heterogeneity, teacher training

JEL Classification: I21, I28, C1

Suggested Citation

von Hippel, Paul and Bellows, Laura, How Much Does Teacher Quality Vary Across Teacher Preparation Programs? Reanalyses from 6 States (January 14, 2018). Economics of Education Review, 2018, Forthcoming. Available at SSRN: https://ssrn.com/abstract=2990498 or http://dx.doi.org/10.2139/ssrn.2990498

Paul Von Hippel (Contact Author)

University of Texas at Austin - Lyndon B. Johnson School of Public Affairs ( email )

2315 Red River, Box Y
Austin, TX 78712
United States

Laura Bellows

Duke University - Sanford School of Public Policy ( email )

201 Science Drive
Durham, NC 27708
United States

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