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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Early Child Res Q. 2011;26(2):169–181. doi: 10.1016/j.ecresq.2010.09.002

Table 2.

Self-Regulation – Taxonomy of fitted growth models for the effects of child’s gender, talkativeness, and spoken vocabulary on self-regulation from 14 to 36 months of age, controlling for maternal language (N=120 children, 290 observations).

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