Table 5.
Mixed models predicting academic skills from indicators of emotional-behavioral difficulties (Part 3).
| Reading Accuracy (No. of Errors) | ||||||
|---|---|---|---|---|---|---|
| Fixed Effects | b | SE | df | T | LLCI | ULCI |
| Intercept | 0.084 | 0.105 | 18.815 | 0.801 | −0.136 | 0.306 |
| Sex | 0.182 * | 0.081 | 416.827 | 2.236 * | 0.022 | 0.342 |
| Conduct problems | −0.065 | 0.071 | 419.604 | −0.918 | −0.204 | 0.074 |
| Hyperactivity | 0.408 *** | 0.063 | 419.574 | 6.455 *** | 0.284 | 0.532 |
| Difficulties with peers | 0.027 | 0.064 | 429.857 | 0.432 | −0.099 | 0.154 |
| Emotional difficulties | 0.165 ** | 0.054 | 428.551 | 3.029 ** | 0.058 | 0.273 |
| Conduct problems X Sex | −0.014 | 0.140 | 418.766 | −0.103 | −0.291 | 0.262 |
| Hyperactivity X Sex | 0.291 * | 0.124 | 416.710 | 2.347 * | 0.047 | 0.535 |
| Difficulties with peers X Sex | −0.022 | 0.118 | 413.132 | −0.190 | −0.256 | 0.210 |
| Emotional difficulties X Sex | −0.005 | 0.102 | 415.223 | −0.057 | −0.207 | 0.195 |
| Random Effects | B | Z Wald | ||||
| Σu | 0.188 * | 2.589 | ||||
| Σe | 0.625 *** | 14.328 *** | ||||
| Deviance | ||||||
| −2LL (df) | 1113.592 (12) | |||||
| AIC | 1107.592 | |||||
* p < 0.05. ** p < 0.01. *** p < 0.001. Note. Sex: male −0.5 and female 0.5; such values allow interpreting the intercept value as referring to a generic child, with no sex assigned. LLCI, lower-level confidence interval (95%); ULCI, upper-level confidence interval (95%). σu: estimate of the residual error variance. σe: estimate of the intercept variance. −2LL: −2 Log likelihood. AIC: Akaike’s Information Criterion.