Table 8.
Secondary outcome measures (child behavior): Standardized parameter estimates (and standard errors), t and p values, and 95% confidence intervals of multilevel models of intervention outcome predicted by measurement point (T2 and T3, deviations from T1), group [intervention (reference) and waitlist control group], control variable (PHQ-4 score at T1), and interaction variables (group by T2 and T3).
| Interaction | |||||||
|---|---|---|---|---|---|---|---|
| Intercept | T2 | T3 | Group | PHQ-4 at T1 | Group x T2 | Group x T3 | |
| Secondary outcome measure: Child behavior (CBCL) | |||||||
| - Child aggressive behavior assessed by the participating mother | |||||||
| β (SE) | 0.40 (0.24) | -0.33 (0.11) | -0.38 (0.11) | -0.28 (0.26) | -0.04 (0.04) | 0.29 (0.17) | 0.30 (0.18) |
| t | 1.68† | -2.90∗∗ | -3.34∗∗ | -1.08 | -0.86 | 1.74† | 1.63 |
| p | 0.097 | 0.005 | 0.001 | 0.284 | 0.392 | 0.087 | 0.108 |
| 95% CI | (-0.07, 0.88) | (-0.56, -10) | (-0.61, -0.15) | (-0.79, 0.23) | (-0.12, 0.05) | (-0.04, 0.63) | (-0.07, 0.66) |
| - Child emotional reactivity assessed by the participating mother | |||||||
| β (SE) | -0.11 (0.22) | -0.20 (0.13) | -0.19 (0.13) | -0.01 (0.23) | 0.05 (0.04) | 0.35 (0.19) | 0.25 (0.21) |
| t | -0.49 | -1.61 | -1.40 | -0.04 | 1.25 | 1.90† | 1.72 |
| p | 0.627 | 0.113 | 0.167 | 0.967 | 0.215 | 0.062 | 0.246 |
| 95% CI | (-0.56, 0.34) | (-0.45, 0.05) | (-0.45, 0.08) | (-0.47, 0.45) | (-0.03, 0.13) | (-0.02, 0.73) | (-0.17, 0.67) |
| - Child aggressive behavior assessed by the non-participating parent | |||||||
| β (SE) | 0.01 (0.14) | 0.07 (0.14) | -0.17 (0.14) | 0.14 (0.23) | – | -0.28 (0.22) | -0.10 (0.22) |
| t | 0.061 | 0.51 | -1.22 | 0.60 | – | -1.24 | -0.43 |
| p | 0.951 | 0.613 | 0.229 | 0.552 | – | 0.219 | 0.668 |
| 95% CI | (-0.28, 0.30) | (-0.21, 0.35) | (-0.46, 0.11) | (-0.32, 0.59) | – | (-0.72, 0.17) | (-0.54, 0.35) |
| - Child emotional reactivity assessed by the non-participating parent | |||||||
| β (SE) | 0.14 (0.15) | 0.10 (0.15) | -0.05 (0.16) | -0.33 (0.24) | – | -0.30 (0.23) | -0.09 (0.25) |
| t | 0.94 | 0.70 | -0.28 | -1.36 | – | -1.28 | -0.35 |
| p | 0.350 | 0.490 | 0.778 | 0.179 | – | 0.205 | 0.730 |
| 95% CI | (-0.16, 0.44) | (-0.19, 0.40) | (-0.37, 0.28) | (-0.80, 0.15) | – | (-0.77, 0.17) | (-0.59, 0.42) |
†p < 0.10, ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001; SE, standard error; β, Standardized parameter estimate can be interpreted similar to Cohen’s d in case of dichotomous variables, and as Pearson r in case of continuous variables; CI, confidence interval; PHQ-4, Patient Health Questionnaire – 4; CBCL, child behavior checklist.