Table 1.

Maximum likelihood estimates from modified twin-correlation model with mid-parent education level moderator

	b0	SE	b1	SE
Main Effect of Education
Education	5.18	0.04	0.92	0.04
Moderation by Education
log(σ2GA)	1.11	0.03	−0.22	0.04
rMZ	0.83	0.01	−0.04	0.02
rDZ	0.45	0.03	−0.12	0.04

Notes. Intercept (b₀) and slope (b₁) of log(σ²_GA) estimated in Mplus 7.4 by calculating e^{(b₀ + b₁*EDU)}.