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. Author manuscript; available in PMC: 2013 Oct 4.
Published in final edited form as: Forum Health Econ Policy. 2012 Oct 4;14(2):11. doi: 10.2202/1558-9544.1237

Table 3.

Race and socioeconomic status (SES) Effects on child development ratea

Effect Excluding Investment Including Investment (exogenous) Including Investment (area instrument) Including Investment (caregiver instruments)
African ancestry Mean −5.96*** (1.27) −5.27*** (1.27) −3.73** (1.75) −4.25** (1.79)
q=0.1 −8.72*** (3.28) −5.42* (3.04) −1.0 (3.75) −1.02 (4.85)
q=0.25 −6.12*** (1.89) −5.45*** (1.96) −3.22 (2.11) −2.96 (2.13)
q=0.5 −5.18*** (1.27) −4.24*** (1.28) −3.62** (1.74) −3.74** (1.53)
q=0.75 −5.68*** (2.03) −5.03** (2.00) −4.9*** (1.75) −4.70** (1.86)
q=0.9 −3.47** (1.75) −3.66** (1.81) −3.31* (1.92) −3.25 (2.24)
Native ancestry Mean −4.33** (1.75) −4.20** (1.68) −3.91** (1.76) −4.01** (1.70)
q=0.1 −5.06*** (1.68) −4.58** (1.83) −4.93*** (1.72) −4.50** (1.78)
q=0.25 −5.28*** (1.20) −4.29*** (1.18) −3.22** (1.21) −2.76** (1.21)
q=0.5 −3.48*** (0.75) −3.41*** (0.75) −3.86*** (0.92) −3.96*** (0.84)
q=0.75 −2.81*** (0.90) −3.12*** (0.79) −3.42*** (0.77) −3.47*** (0.78)
q=0.9 −1.34** (0.66) −1.84*** (0.70) −2.24*** (0.87) −3.10*** (0.97)
SES Mean 0.96** (0.38) 0.30 (0.33) −1.18* (0.65) −0.67 (0.76)
q=0.1 1.01 (0.70) 0.42 (0.78) −0.88 (0.8) −0.75 (1.16)
q=0.25 1.11** (0.51) 0.37 (0.54) −1.1* (0.62) −1.15 (0.77)
q=0.5 0.73** (0.34) 0.40 (0.35) −1.58*** (0.6) −0.42 (0.82)
q=0.75 0.62* (0.36) 0.22 (0.36) −0.37 (0.46) −0.32 (0.67)
q=0.9 0.44 (0.28) 0.33 (0.30) −0.14 (0.47) −0.80 (0.87)
** and ***

indicate p <0.1, <0.05 and <0.01, respectively.

Standard errors are in parentheses. q represents the quantiles of the child development rate.

a

Derived from the Bayley Infant Neurodevelopment Screener. Copyright @ 2004. Harcourt Assessment Inc. Used with Permission. All rights Reserved.