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. Author manuscript; available in PMC: 2012 Jul 16.
Published in final edited form as: J Ment Health Policy Econ. 2009 Sep;12(3):119–138.
Outcome Steal Steal Steal Steal
Specification Baseline No Census data just exogenous Drop PVT/GPA
Inattentive ADHD 0.034 0.037* 0.041** 0.038*
(−0.007 – 0.075) (−0.004 – 0.078) (0.002 – 0.080) (−0.000 – 0.076)
Hyper ADHD 0.044** 0.047** 0.042** 0.037**
(0.004 – 0.085) (0.004 – 0.089) (0.003 – 0.081) (0.001 – 0.073)
Combined ADHD 0.032** 0.030* 0.027* 0.028*
(0.001 – 0.063) (−0.001 – 0.060) (−0.001 – 0.056) (−0.001 – 0.057)
Observations 12623 13120 14180 13625
Outcome Steal Steal Steal Steal
Specification Include Other Xs Drop Educ/Family Vars Lower ADHD Bar Drop Older Kids
Inattentive ADHD 0.035 0.040* 0.008 0.032
(−0.013 – 0.082) (−0.000 – 0.080) (0.011) (−0.008 – 0.072)
Hyper ADHD 0.048** 0.038** 0.033** 0.050**
(0.002 – 0.093) (0.002 – 0.074) (0.013) (0.006 – 0.094)
Combined ADHD 0.026 0.029** 0.040*** 0.028*
(−0.007 – 0.058) (0.000 – 0.058) (0.014) (−0.002 – 0.058)
Observations 9603 13634 12623 11947

Just Exogenous: We drop education attainment, indicator for currently in school, grade point average, PVT score, mother’s education attainment, family income, and family structure

Include other Xs: Welfare receipt, whether father ever jailed, and birth weight

Lower ADHD Threshold: Individuals must have 5 symptoms rather than 6.

Robust 95% confidence intervals in parentheses, +10%,

*

5%,

**

1%.

Longitudinal sample weights used.