Table 2.
Data of all secondary outcome measures
| Pre | Post | Follow-up | Friedman-Test | Dunn-Bonferroni-Tests and effect sizes T0-T1 |
Dunn-Bonferroni-Tests and effect sizes T0-T2 |
|
|---|---|---|---|---|---|---|
| MCQ-30 | 61.4 ± 12.9 | 49.5 ± 10.8 | 45.5 ± 10.4 | χ2(2) = 24.4, p < 0.01 | z = 2.7, p < 0.05; r = 0.6 | z = 4.9, p < 0.01, r = 1.1 |
| PBRS | 20.8 ± 5.5 | 14.4 ± 6.7 | 13.7 ± 7.1 | χ2(2) = 14.4, p < 0.01 | z = 2.7, p < 0.05; r = 0.6 | z = 3.4, p < 0.01, r = 0.8 |
| NBRS | 26.9 ± 6.6 | 21 ± 5.6 | 19.3 ± 6 | χ2(2) = 12.2, p < 0.01 | z = 2.2, p = 0.09, r = 0.5 | z = 3.4, p < 0.01, r = 0.8 |
| BDI-2 | 29 ± 8.6 | 13 ± 8.4 | 8.4 ± 9.6 | χ2(2) = 33.6, p < 0.01 | z = 3.8, p < 0.01; r = 0.8 | z = 5.7, p < 0.01; r = 1.3 |
MCQ-30 Metacognitions Questionnaire-30, PBRS Positive beliefs about rumination scale, NBRS negative beliefs about rumination scale, BDI-2 Beck Depression Inventory-2