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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Early Hum Dev. 2014 Aug 14;90(10):595–605. doi: 10.1016/j.earlhumdev.2014.05.014

Table III.

Fixed effects for the unconditional and maternal EA covariate models, 3 months

Estimate Lower (α = .05) Upper (α = .05) .E. t (df= 87) Deviance
Unconditional model 361.1
Fixed effects
Intercept .2456 .1252 .3659 061 4.06**
Linear .0152 .0047 .0257 005 2.87**
Quadratic .0005 −.0018 .0028 001 .45
Random effects
Intercept .1197 026
Maternal EA covariate model 353.1
Fixed effects
Intercept .2337 .1131 .3543 061 3.85**
Linear .0147 .0004 .0251 005 2.78**
Maternal EA −.1918 −.3306 −.0531 070 −2.73**
Maternal EA × Linear −.0124 −.0257 .0008 007 −1.85†
Quadratic .0009 −.0014 .0032 001 .76
Maternal EA × Quadratic .0022 −.0000 .0043 001 1.95*
Random effects
Intercept .1147 0254

Notes:

**

Significant at p ≤ .01

*

Significant at p ≤ .05

†

Significant at p ≤ .10