| Language | Statistical tests performed | |||||||
|
| Reliability (alpha) of total scale | Reliability (alpha) of subscales | Inter-item correlation | Exploratory factor analysis of principle component analyses | Confirmatory factor analysis (CFA) | Convergent validity (CFA) | Discriminant validity | Criterion validity (with other scales) |
| Dutch | Yes | Yes | Yes | No | No | No | No | Yes |
| Spanish | Yes | No | No | Yes 3 factor 13 loaded differently | No | No | No | No |
| *Bosnian | No | No | No | 3 factor 9 loaded differently | No | No | No | No |
| *Chinese | Yes | No | No | 3 factor 6 loaded differently | No | No | No | No |
| *German | Yes | No | No | No | No | No | No | No |
| Japanese | Yes | Yes | Yes | 4 factors 3 items removed | Yes 3 items removed | No | No | No |
| Portuguese | Yes | Yes | Yes | Yes | No | No | Yes | Yes |
| PTG-SF | Yes | Yes | Some | No | Yes | Yes | No | PTG/PTG-SF |