Table 3. Confirmatory Factor Analysis with factor loadings and response option thresholds.
| Depression dimension | Item content | Factor loading | Response option thresholds | Loc | R2 | |||
|---|---|---|---|---|---|---|---|---|
| B1 | B2 | B3 | B4 | |||||
| Insomnia | ||||||||
| HAM5 | insomnia late | 0.665 | -0.424 | 0.079 | 0.172 | 0.44 | ||
| HAM6 | insomnia middle | 0.678 | -0.387 | 0.326 | 2.803 | 0.913 | 0.459 | |
| BDIQ16 | insomnia | 0.709 | -1.491 | -0.226 | 0.278 | -0,482 | 0.502 | |
| Non-interactiveness / Motor Retardation | ||||||||
| CORE17 | slowing of speech | 0.722 | 1.046 | 1.750 | 2.806 | 1.865 | 0.521 | |
| HAM8 | psychomotor retard. | 0.794 | 0.060 | 1.102 | 2.431 | 1.197 | 0.630 | |
| CORE6 | delayed verbal responses | 0.764 | -0.148 | 0.559 | 1.959 | 0.787 | 0.583 | |
| CORE16 | talk impaired spontaneity | 0.872 | 0.849 | 2.004 | 2.806 | 1.884 | 0.761 | |
| CORE7 | shortened verbal responses | 0.853 | 1.014 | 2.107 | 1.5600 | 0.727 | ||
| CORE13 | slowed movement | 0.522 | 0.983 | 2.325 | 1.654 | 0.272 | ||
| CORE12 | poverty of associations | 0.735 | 0.626 | 1.620 | 2.806 | 1.682 | 0.540 | |
| CORE2 | facial immobility | 0.756 | 0.962 | 1.844 | 2.575 | 1.792 | 0.571 | |
| CORE1 | non-interactiveness | 0.801 | 0.515 | 1.721 | 1.118 | 0.641 | ||
| CORE10 | bodily immobility | 0.714 | 1.044 | 1.044 | 0.510 | |||
| CORE15 | delayed motor activity | 0.862 | 0.673 | 1.620 | 2.575 | 1.621 | 0.743 | |
| CORE4 | non-reactivity | 0.883 | 0.376 | 1.721 | 2.806 | 1.632 | 0.780 | |
| CORE8 | inattentiveness | 0.885 | 0.244 | 1.238 | 2.325 | 1.267 | 0.784 | |
| Agitation | ||||||||
| CORE9 | facial agitation | 0.830 | 0.417 | 1.404 | 2.575 | 1.463 | 0.689 | |
| CORE11 | motor agitation | 0.782 | 1.355 | 2.107 | 2.806 | 2.087 | 0.611 | |
| HAM9 | agitation | 0.876 | 0.787 | 1.918 | 1.352 | 0.767 | ||
| CORE5 | facial apprehension | 0.590 | 1.844 | 2.806 | 2.325 | 0.348 | ||
| CORE14 | verbal stereotypy | 0.751 | 0.472 | 1.035 | 2.053 | 2.575 | 1.531 | 0.564 |
| HAM10 | anxiety psychological | 0.628 | -1.068 | 0.303 | 0.914 | 1.918 | 0.513 | 0.395 |
| Cognitive Symptoms (Pessimism) | ||||||||
| BDIQ5 | feelings of guilt | 0.640 | -1.811 | -0.383 | 0.544 | -0.551 | 0.409 | |
| BDIQ3 | feelings of failure | 0.541 | -1.147 | -0.101 | 0.334 | -0.918 | 0.293 | |
| BDIQ7 | disappoint in myself | 0.727 | -0.803 | -0.120 | 0.794 | -0.044 | 0.528 | |
| BDIQ6 | feelings of punishment | 0.414 | -1.844 | -0.199 | 0.403 | -0.547 | 0.172 | |
| BDIQ8 | critical of myself | 0.676 | -0.618 | 0.098 | 0.680 | 0.053 | 0.457 | |
| BDIQ9 | suicidal thoughts | 0.574 | -0.387 | -0.088 | 0.031 | -0.148 | 0.330 | |
| BDIQ12 | lost interest in people | 0.705 | -0.840 | 0.508 | 1.102 | 0.256 | 0.497 | |
| BDIQ13 | difficulties in decisions | 0.579 | -1.293 | -0.314 | 0.513 | 1.097 | 0.336 | |
| BDIQ1 | feelings of sadness | 0.701 | -0.489 | 0.511 | 0.873 | 0.297 | 0.491 | |
| BDIQ2 | hopelesness | 0.592 | -0.686 | 0.095 | 1.123 | 0.176 | 0.351 | |
| BDIQ4 | anhedonia | 0.606 | -1.532 | -0.847 | 0.624 | -0.586 | 0.368 | |
| HAM3 | suicide | 0.477 | -0.801 | -0.213 | 0.750 | -0.088 | 0.228 | |
| BDIQ14 | unattractiveness (feel.) | 0.305 | -0.445 | 0.193 | 1.575 | 0.439 | 0.093 | |
| HAM2 | feelings of guilt | 0.632 | -0.641 | -0.199 | 0.762 | 2.431 | 0.587 | 0.400 |
| Appetite | ||||||||
| HAM16 | weight loss | 0.778 | -0.412 | 0.331 | 1.053 | 0.323 | 0.606 | |
| BDIQ19 | weight loss | 0.662 | 0.355 | 0.978 | 1.434 | 0.921 | 0.439 | |
| HAM12 | GI symptoms | 0.799 | -0.123 | 1.212 | 2.806 | 1.296 | 0.638 | |
| BDIQ18 | worse appetite | 0.734 | 0.559 | 0.822 | 0.690 | 0.538 | ||
| Sexual | ||||||||
| HAM14 | genital symptoms | 0.692 | -0.993 | -0.465 | 2.806 | 0.447 | 0.478 | |
| BDIQ21 | loss of libido | 0.935 | -1.108 | -0.369 | 0.038 | -0.482 | 0.875 | |
Legend: HAM, 17-item Hamilton Depression Rating Scale; BDI, 21-item Beck Depression Inventory; CORE, Core Assessment of Psychomotor Change; Loc, items locations; R2, squared factor loading (proportion of variance in that indicator variable explained by the factor).