Table 2.
Parameter | Model A | Model A | Model B | Model C | |
---|---|---|---|---|---|
Quadratic Growth + Gender | Model A + Talkativeness | Model A + Vocabulary | Model A + Vocabulary and Talkativeness | ||
Fixed Effects | |||||
Initial Status at 14 Months | |||||
INTERCEPT | γ00 | 3.6639*** (0.0896) | 3.5645*** (0.1198) | 3.5467*** (0.1146) | 3.5774*** (0.1198) |
GIRL | γ01 | −0.0113 (0.1343) | −0.0219 (0.1351) | −0.0154 (0.1346) | −0.0154 (0.1355) |
Linear Rate of Change each Month (instantaneous rate of change at 14 months) | |||||
AGE | γ10 | −0.0502** (0.0185) | −0.0865*** (0.0201) | −0.1034*** (0.0207) | −0.1031*** (0.0208) |
AGE* GIRL | γ11 | 0.0695* (0.0277) | 0.0968** (0.0311) | 0.0864* (0.0337) | 0.0791* (0.0344) |
Quadratic Rate of Change each Month (acceleration of change) | |||||
AGE2 | γ20 | 0.0023** (0.0008) | 0.0022** (0.0008) | 0.0024** (0.0008) | 0.0023** (0.0008) |
AGE2* GIRL | γ21 | −0.0025* (0.0011) | −0.0026* (0.0012) | −0.0023~ (0.0012) | −0.0020~ (0.0012) |
Main Effect of Child’s Talkativeness | |||||
TALK | γ30 | 0.0050*** (0.0009) | −0.0004 (0.0026) | ||
TALK* GIRL | γ31 | −0.0037* (0.0014) | −0.0017 (0.0032) | ||
Main Effect of Child’s Vocabulary | |||||
VOCAB | γ40 | 0.0169*** (0.0027) | 0.0181* (0.0078) | ||
VOCAB* GIRL | γ41 | −0.0089~ (0.0044) | −0.0040 (0.0101) | ||
Main Effect of Mom’s Talkativeness | |||||
M_TALK | γ60 | 0.0011 (0.0010) | −0.0007 (0.0019) | ||
Main Effect of Mom’s Vocabulary | |||||
M_VOCAB | γ70 | 0.0029 (0.0022) | 0.0036 (0.0046) | ||
Variance Components | |||||
L 1: Within-person | σ2ε | 0.3128*** | 0.3093*** | 0.2960*** | 0.2897*** |
L 2: In Intercept | σ20 | 0.1246* | 0.1198* | 0.1305* | 0.1416* |
In Rate of change | σ21 | 0.0006* | 0.0002 | 0.0002 | 0.0002 |
Covariance 01 | σ01 | −0.0006 | −0.0003 | −0.0012 | −0.0019 |
Fit Statistics | |||||
Deviance | 588.8 | 517.3 | 507.2 | 505.9 |
p < .10,
p < .05,
p < .01,
p < .001