Table F4.

Effect of Birth Weight on IQ by Early Life Environments, FE

Dependent Variable: High School IQ
Sample Division:	Mother’s Edu		Father’s Edu		Family SES		Urban/Rural
	< 12 yrs.	≥ 12 yrs.	< 12 yrs.	≥ 12 yrs.	< Median	≥ Median	Rural	Urban
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
Std. Birth Weight	1.8399** (0.8950)	0.9657 (0.9634)	1.4577 (0.9425)	1.1112 (0.8971)	1.6927* (0.9651)	1.1357 (0.8988)	1.3252* (0.7240)	2.3008 (1.6593)
Baseline Controls	Y	Y	Y	Y	Y	Y	Y	Y
Sibling Fixed Effects	Y	Y	Y	Y	Y	Y	Y	Y
N	434	504	540	398	436	502	732	206
R Sqr.	0.6952	0.6750	0.6786	0.7060	0.7081	0.6619	0.6970	0.7113

Notes: This table regresses high school IQ on birth weight, the set of baseline controls, and family indicators. With fixed effects estimation, our preferred specification, the coefficient of birth weight is statistically indistinguishable within each bifurcation.