Table 3.
Number of Concepts - Taxonomy of fitted growth models for the effects of children's pointing and vocabulary on the development of the number of social-emotional concepts displayed during play from 14 to 36 months of age (n =108), controlling for children's talkativeness, and mothers' pointing, vocabulary, and talkativeness.
| Model A | Model B | Model C | Model D | ||
|---|---|---|---|---|---|
| Parameter | Unconditional Growth Model | Pointing | Talkativeness and Vocabulary | Pointing and Vocabulary | |
| Fixed Effects | |||||
| Initial Status at 14 Months | |||||
| INTERCEPT | γ 00 | 1.1496*** (0.1132) | 1.2435*** (0.1998) | 1.2513*** (0.3045f) | 1.3092*** (0.2968) |
| EARLY_POINT | γ 01 | −0.01968 (0.01442) | −0.00456 (0.01496) | ||
| Linear Rate of Change each Month (instantaneous rate of change at 14 months) | |||||
| (AGE-14) | γ 10 | 0.0475* (0.0220) | −0.0127 (0.0315) | 0.0528 (0.0344) | 0.0157 (0.0387) |
| EARLY_POINT* | γ 11 | 0.00241* (0.00038) | 0.00155* (0.00037) | ||
| (AGE_14) | |||||
| Quadratic Rate of Change each Month (acceleration of change) | |||||
| (AGE-14)2 | γ 20 | −0.0018~ (0.0009) | 0.0001 (0.0012) | −0.0050** (0.0018) | −0.0035~ (0.0019) |
| EARLY_POINT* | γ 21 | −0.00003* (0.00000) | −0.00002~ (0.00000) | ||
| (AGE-14)2 | |||||
| Main effect of Child's Pointing | |||||
| POINT | γ 30 | 0.01935* (0.00444) | 0.01071 (0.00448) | ||
| Main effect of Child's Talkativeness | |||||
| TALK | γ 40 | 0.00200 (0.00378) | |||
| Main effect of Child's Vocabulary | |||||
| VOCAB | γ 50 | −0.02100 (0.01117) | −0.01107 (0.00475) | ||
| Change in Effect of Child Vocabulary Each Month | |||||
| VOCAB*(AGE-14) | γ 60 | 0.00013* (0.00002) | 0.00012** (0.00002) | ||
| Main effect of Mom's Pointing | |||||
| MOM_POINT | γ 70 | −0.00137 (0.00241) | −0.00194 (0.00278) | ||
| Main effect of Mom's Talkativeness | |||||
| MOM_TALK | γ 80 | 0.00053 (0.00429) | |||
| Main effect of Mom's Vocabulary | |||||
| MOM_VOCAB | γ 90 | −0.00154 (0.01132) | 0.00003 (0.00241) | ||
|
| |||||
| Variance Components | |||||
| L 1: Within- person over Time | σ 2 ε | 0.6611*** | 0.6097*** | 0.6128*** | 0.5681*** |
| L 2: Between Person In Intercept | σ 2 0 | 0.3009* | 0.3633** | 0.3587* | 0.4248** |
| Between Person In Linear Rate of change | σ 2 1 | 0.0002 | 0.0000 | 0.0003 | 0.0002 |
| Covariance 01 Intercept and Linear Rate of Change | σ 01 | 0.0027 | −0.0047 | −0.0019 | −0.0084 |
|
| |||||
| Goodness-of-fit | |||||
| Deviance | 623.8 | 548.6 | 609.9 | 540.0 | |
| AIC | 637.8 | 570.6 | 633.9 | 570.0 | |
~
p < .10;
*
p < .05
**
p < .01
***
p < .001