| Baseline | Post-assessment | Intervention effects (group x time effect) | |||||
---|---|---|---|---|---|---|---|---|
EG | CG | EG | CG | F | df | p | \(\eta_{p}^{2}\) | |
Main outcome variables | ||||||||
 Depressive symptoms | 8.24 (5.60) | 7.49 (3.91) | 8.28 (6.45) | 5.67 (4.05) | 2.49 | 1, 98 | 0.118 | 0.02 |
 Internalising symptoms (self-report) | 9.99 (7.34) | 7.96 (5.34) | 7.95 (6.90) | 8.02 (5.24) | 5.42 | 1, 98 | 0.022 | 0.05 |
 Externalising symptoms (self-report) | 9.03 (5.29) | 8.73 (5.76) | 7.82 (5.84) | 10.42 (4.97) | 8.44 | 1, 98 | 0.005 | 0.08 |
 Depression/anxiety (self-report) | 4.98 (3.18) | 3.51 (2.56) | 3.03 (3.97) | 4.43 (3.12) | 8.54 | 1,98 | 0.004 | 0.08 |
 Internalising symptoms (parent-report) | 9.01 (6.15) | 8.97 (5.45) | 7.22 (7.51) | 8.14 (5.49) | 0.76 | 1, 98 | 0.384 | 0.001 |
 Externalising symptoms (parent-report) | 7.17 (5.35) | 6.34 (5.61) | 5.59 (5.43) | 4.41 (3.68) | 0.88 | 1, 98 | 0.767 | 0.001 |
 Depression/anxiety (parent-report) | 4.48 (3.60) | 4.06 (3.14) | 3.46 (3.92) | 3.71 (2.83) | 0.96 | 1, 98 | 0.328 | 0.001 |
Potential mechanisms | ||||||||
 Adaptive ER | 128.46 (26.91) | 133.73 (26.37) | 122.71 (35.34) | 136.23 (24.45) | 1.89 | 1, 98 | 0.172 | 0.002 |
 Maladaptive ER | 71.22 (13.02) | 68.34 (14.21) | 70.61 (14.15) | 70.14 (11.08) | 0.76 | 1, 98 | 0.383 | 0.001 |
 Positive attributional style | 66.06 (9.27) | 65.66 (9.67) | 69.21 (8.52) | 70.03 (6.98) | 0.51 | 1, 98 | 0.477 | 0.005 |
 Negative attributional style | 59.66 (9.49) | 58.78 (10.83) | 65.94 (8.57) | 63.69 (8.08) | 0.54 | 1, 98 | 0.465 | 0.005 |
 Positive parenting | 75.00 (9.48) | 69.57 (10.21) | 74.22 (12.68) | 71.22 (11.40) | 0.96 | 1, 98 | 0.330 | 0.010 |
 Negative parenting | 67.19 (12.52) | 67.05 (9.63) | 63.67 (10.41) | 66.63 (7.52) | 1.86 | 1, 98 | 0.175 | 0.019 |
 Knowledge of depression | 33.36 (4.26) | 32.03 (2.99) | 35.79 (2.40) | 34.74 (2.98) | 0.14 | 1, 98 | 0.704 | 0.001 |
Potential moderator | Â | Â | Â | Â | Â | Â | Â | Â |
 Parental depression | 16.70 (9.84) | 17.76 (11.25) | 11.96 (8.98) | 13.92 (7.99) | 0.17 | 1, 98 | 0.677 | 0.002 |