Table 8.
Results for the final model for each cognitive process in the SIP.
| Dependent variablea | Parameters | Estimate (SE) | η2 |
|---|---|---|---|
| Attention (n = 329) | Intercept | −1.578 (0.157)*** | – |
| Time | 0.930 (0.098)*** | 0.349 | |
| Child age | 0.564 (0.058)*** | 0.295 | |
| Group (control)*time | −0.477 (0.135)** | 0.060 | |
| Working memory (n = 138) | Intercept | −1.348 (0.226)*** | – |
| Time | 0.810 (0.102)*** | 0.404 | |
| Group (control) | −0.398 (0.136)* | 0.078 | |
| Child age | 0.540 (0.087)*** | 0.278 | |
| Social resources*time | 0.202 (0.092)* | 0.050 | |
| Inhibitory control (n = 382) | Intercept | −0.141 (0.141)*** | – |
| Time | 0.334 (0.075)*** | 0.064 | |
| Child age | 0.348 (0.051)*** | 0.131 | |
| Flexibility (n = 329) | Intercept | −1.284 (0.223)*** | – |
| Time | 1.920 (0.294)*** | 0.185 | |
| Child age | 0.516 (0.075)*** | 0.138 | |
| Frequency (once a week) | −0.577 (0.103)*** | 0.163 | |
| Group (control)*time | −0.550 (0.191)* | 0.050 | |
| Child age*time | −0.423 (0.109)** | 0.085 | |
| Planning (n = 329) | Intercept | −2.133 (0.116)*** | – |
| Time | 1.192 (0.078)*** | 0.444 | |
| Child age | 0.667 (0.039)*** | 0.501 | |
| Group (control)*time | −0.720 (0.111)*** | 0.130 |
Estimates from Proc Mixed using the Restricted Maximum Likelihood estimator.
a
Dependent Variables = Z-scores; parameter estimate standard errors (SE) listed in parentheses.
*
p < 0.05;
**
p < 0.001;
***
p < 0.0001.