Experimental Evidence on Distributional Effects of Head Start

55 Pages Posted: 3 Sep 2014

See all articles by Marianne P. Bitler

Marianne P. Bitler

University of California, Davis - Departments of Economics and Agricultural Resource Economics; National Bureau of Economic Research (NBER); IZA Institute of Labor Economics

Hilary Williamson Hoynes

University of California, Berkeley; National Bureau of Economic Research (NBER); IZA Institute of Labor Economics

Thurston Domina

University of North Carolina (UNC) at Chapel Hill

Date Written: August 2014

Abstract

This study provides the first comprehensive analysis of the distributional effects of Head Start, using the first national randomized experiment of the Head Start program (the Head Start Impact Study). We examine program effects on cognitive and non-cognitive outcomes and explore the heterogeneous effects of the program through 1st grade by estimating quantile treatment effects under endogeneity (IV-QTE) as well as various types of subgroup mean treatment effects and two-stage least squares treatment effects. We find that (the experimentally manipulated) Head Start attendance leads to large and statistically significant gains in cognitive achievement during the pre-school period and that the gains are largest at the bottom of the distribution. Once the children enter elementary school, the cognitive gains fade out for the full population, but importantly, cognitive gains persist through 1st grade for some Spanish speakers. These results provide strong evidence in favor of a compensatory model of the educational process. Additionally, our findings of large effects at the bottom are consistent with an interpretation that the relatively large gains in the well-studied Perry Preschool Program are in part due to the low baseline skills in the Perry study population. We find no evidence that the counterfactual care setting plays a large role in explaining the differences between the HSIS and Perry findings.

Suggested Citation

Bitler, Marianne P. and Hoynes, Hilary Williamson and Domina, Thurston, Experimental Evidence on Distributional Effects of Head Start (August 2014). NBER Working Paper No. w20434, Available at SSRN: https://ssrn.com/abstract=2490842

Marianne P. Bitler (Contact Author)

University of California, Davis - Departments of Economics and Agricultural Resource Economics ( email )

United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

IZA Institute of Labor Economics

P.O. Box 7240
Bonn, D-53072
Germany

Hilary Williamson Hoynes

University of California, Berkeley ( email )

310 Barrows Hall
Berkeley, CA 94720
United States

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

IZA Institute of Labor Economics

P.O. Box 7240
Bonn, D-53072
Germany

Thurston Domina

University of North Carolina (UNC) at Chapel Hill ( email )

102 Ridge Road
Chapel Hill, NC NC 27514
United States

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