Table 4. Correlations of the Bayley-III and the Short Tests with Maternal Education, Household Wealth, Play Activities and Play Materials in the Home, All Ages Combined.
| Maternal Education | Wealth Index | Play Activities | Play Materials | |
|---|---|---|---|---|
| Bayley-III (n = 1311) | ||||
| Cognition | 0.210*** | 0.235*** | 0.189*** | 0.271*** |
| Receptive Language | 0.216*** | 0.191*** | 0.214*** | 0.248*** |
| Expressive Language | 0.206*** | 0.224*** | 0.209*** | 0.243*** |
| Fine Motor | 0.124*** | 0.145*** | 0.119*** | 0.179*** |
| Gross Motor | 0.079** | 0.034 | 0.023 | 0.056* |
| ASQ-3 (n = 664) | ||||
| Problem Solving | 0.127** | 0.071 | 0.176*** | 0.177*** |
| Communication | 0.142*** | 0.136*** | 0.222*** | 0.156*** |
| Fine Motor | 0.063 | 0.067 | 0.167*** | 0.133*** |
| Gross Motor | -0.025 | 0.046 | 0.069 | 0.019 |
| Personal-Social | 0.019 | 0.034 | 0.152*** | 0.088* |
| Denver-II (n = 658) | ||||
| Language | 0.170*** | 0.165*** | 0.184*** | 0.173*** |
| Fine Motor-Adaptive | 0.102** | 0.121** | 0.097* | 0.109** |
| Gross Motor | 0.022 | 0.020 | -0.021 | -0.011 |
| Personal-Social | -0.034 | -0.019 | 0.064 | 0.010 |
| BDI-2 (n = 635) | ||||
| Cognitive | 0.202*** | 0.173*** | 0.164*** | 0.181*** |
| Communication | 0.210*** | 0.176*** | 0.224*** | 0.245*** |
| Motor | 0.139*** | 0.163*** | 0.135*** | 0.179*** |
| Personal-Social | 0.144*** | 0.136*** | 0.240*** | 0.231*** |
| Adaptive Skills | 0.074 | 0.094* | 0.276*** | 0.193*** |
| SFI (n = 192)a | ||||
| Receptive Language | 0.147* | 0.127 | 0.267*** | 0.251*** |
| Expressive Language | 0.040 | -0.060 | -0.007 | -0.005 |
| SFII (n = 226)b | ||||
| Expressive Language | 0.136* | 0.094 | 0.229*** | 0.200** |
| WHO-Motor (n = 152)c | ||||
| Gross Motor | -0.036 | 0.008 | 0.082 | 0.018 |
* p<0.05,
** p<0.01,
*** p<0.001.
a Children 8–18 months.
b Children 19–30 months.
c Children 6–15 months.