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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: Behav Genet. 2017 Jul 25;47(5):507–515. doi: 10.1007/s10519-017-9857-z

Table 4.

Maximum likelihood estimates from modified twin-correlation model with birth year as the moderator

b0 SE b1 SE
Main Effect of Education
Birth Year 4.75 0.09 0.33 0.04
Moderation by Education
log(σ2GA) 1.42 0.06 −0.13 0.03
rMZ 0.85 0.02 −0.004 0.01
rDZ 0.56 0.05 −0.04 0.03

Notes. Intercept (b0) and slope (b1) of log(σ2GA) estimated in Mplus 7.4 by calculating e(b0 + b1*EDU).