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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: J Health Econ. 2015 Feb 21;41:107–116. doi: 10.1016/j.jhealeco.2015.01.005

Table A5.

Base Estimation: Siblings with Discordant Genotypes

Dependent Variable: High School IQ
(1) (2) (3)
Neuroplasticity Genes 0.7779 (0.5333) 0.5907 (0.5364) −0.1729 (0.8028)
Standardized Birth Weight 8.4402*** (2.2905) 7.6851*** (2.3009) 6.9706** (3.1306)
G×E −1.4125*** (0.4628) −1.2430*** (0.4675) −1.0512 (0.6579)
Controls
 Demographic and Family SES Y Y Y
 Sibling Fixed Effects N N Y
Estimation
 Weighting by Prob. of Being in Sib Sample N Y N
N 552 552 552
R Sqr. 0.1755 0.1737 0.7099

Notes: This table performs our base estimation (Table 4) with sibling pairs that are discordant in regards to neuroplasticity genes.