Table 2.

Maximum likelihood estimates from Purcell gene-by-environment interaction model with mid-parent education level moderator

	b0	SE	b1	SE
Moderation by Education
No Negative Variances
Education	5.16	0.04	0.95	0.05
A	0.89	0.03	0.004	0.01
C	0.17	0.15	−0.02	0.06
log(σ2GA)/E	1.11	0.03	−0.20	0.04
Moderation by Education
Allow Negative Variances
Education	5.18	0.04	0.92	0.04
A	−0.26	0.07	0.10	0.06
C	0.06	0.05	−0.12	0.06
log(σ2GA)/E	1.11	0.03	−0.22	0.04

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