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. Author manuscript; available in PMC: 2015 Feb 5.
Published in final edited form as: J Econ Perspect. 2013 Spring;27(2):109–132. doi: 10.1257/jep.27.2.109

Figure 3.

Figure 3

Impacts of the Infant Health and Development Program on Age-3 IQ, by Income and Birth Weight

(standard deviation units)

Source: Authors.

Notes: The figure shows the impact, in standard deviation units, of the Infant Health and Development Program treatment on Age-3 IQ, for lower- and higher-income children and for lower- and higher-birth-weight children in the program. All models also condition on child gender, birth weight, gestational age at birth, neonatal health index, and site indicators.