| Item | Wave 1 | Wave 2 | Referred clients | Mean factor loadings over 3 samples |
| 1 | 57 | 59 | 58 | 58 |
| 2 | 37 | 7 | 69 | 38 |
| 3 | 35 | 25 | 47 | 36 |
| 4 | 15 | 18 | 63 | 32 |
| 5 | 25 | 15 | -14 | 9 |
| 6 | 36 | 32 | 28 | 32 |
| 7 | 44 | 46 | 56 | 49 |
| 8 | 62 | 74 | 73 | 70 |
| 9 | 64 | 70 | 63 | 66 |
| 10 | 38 | 59 | 74 | 57 |
| 11 | 59 | 49 | 63 | 57 |
| 12 | 56 | 53 | 43 | 51 |
| 13 | 48 | 68 | 67 | 61 |
| 14 | 55 | 53 | 49 | 52 |
| 15 | 41 | 26 | 55 | 41 |
| % explained variance first factor (15 items) | 22.0 | 23.2 | 32.5 | 25.9 |
| % explained variance first factor (10 items) | 29.7 | 33.4 | 38.5 | 33.9 |
| Cronbach’s alpha (15 items) | .62 | .58 | .81 | .67 |
| Cronbach’s alpha (10 items) | .63 | .69 | .82 | .71 |