Table 1.
Descriptive data for Polish-language and English-language versions: Correlation between Polish-language and English-language version of each dimension (ML estimation; MTMM approach).
| Variable (Questionnaire) | Polish version | English version | Correlation between Polish and English version | ||||
|---|---|---|---|---|---|---|---|
| M (SD) | Cronbach's alpha | n | M (SD) | Cronbach's alpha | n | ||
| Depressive rumination (RRS-R) | 42.90 (11.05) | 0.91 | 99 | 42.15 (12.91) | 0.94 | 67 | 0.98* |
| Brooding (RRS-R) | 9.79 (3.01) | 0.74 | 99 | 9.50 (3.12) | 0.79 | 67 | 0.98* |
| Reflection (RRS-R) | 9.50 (3.14) | 0.77 | 99 | 9.65 (3.35) | 0.82 | 67 | 0.86* |
| RNT (PTQ) | 27.17 (9.98) | 0.92 | 111 | 25.72 (11.05) | 0.94 | 66 | 0.97* |
| Core features of RNT (PTQ) | 17.66 (6.39) | 0.90 | 111 | 16.36 (6.72) | 0.92 | 66 | 0.89* |
| Unproductiveness of RNT (PTQ) | 4.73 (2.24) | 0.64 | 111 | 4.82 (2.64) | 0.81 | 66 | 0.89* |
| Mental capacity captured by RNT (PTQ) | 4.56 (2.44) | 0.76 | 111 | 4.63 (3.01) | 0.79 | 66 | 0.93* |
| Abstract analytic thinking (Mini-CERTS) | 21.76 (3.97) | 0.69 | 110 | 21.50 (4.35) | 0.74 | 72 | 0.95* |
| Concrete experiential thinking (Mini-CERTS) | 18.79 (3.10) | 0.61 | 110 | 18.52 (3.43) | 0.70 | 72 | 0.93* |
RRS-R, The Ruminative Response Scale-Revised; RNT, Repetitive Negative Thinking; PTQ, The Perseverative Thinking Questionnaire; Mini-CERTS, The Mini-Cambridge Exeter Repetitive Thinking Scale.
*
p < 0.001.