Concurrent validity: Spearman rank correlations (ρ) between the DISCS, the NGRS, the BDI-II and the DSM-IV at initial assessment
| Scale | DISCs* | NGRS* | BDI-II |
|---|---|---|---|
| *All significant at p<0.001. | |||
| BDI, Beck Depression Inventory; DISCs, Depression Intensity Scale Circles; DSM, Diagnostic and Statistical Manual of Mental Disorders; NGRS, Numbered Graphic Rating Scale. | |||
| DISCs | – | – | – |
| NGRS | 0.87 | – | – |
| BDI-II | 0.66 | 0.65 | – |
| DSM-IV | 0.59 | 0.54 | 0.58 |