Table 4.
Exploratory factor analysis (EFA) with four forced factors (n = 322, Imputation 1)
| Factor 1 Explaining 27.8% of the variance Cronbach’s α: 0.844 |
Factor 2 Explaining 9.9% of the variance Cronbach’s α: 0.881 |
Factor 3 Explaining 8.2% of the variance Cronbach’s α: 0.838 |
Factor 4 Explaining 5.7% of the variance Cronbach’s α: 0.719 |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Pattern | Structure | Pattern | Structure | Pattern | Structure | Pattern | Structure | a | |
| (A) Somatic symptoms | |||||||||
| 1. Been feeling perfectly well and in good health? | −0.742 | −0.694 | 0.457 | ||||||
| 2. Been feeling in need of a good tonic? | −0.364 | −0.430 | 0.270 | ||||||
| 3. Been feeling run down and out of sorts? | −0.514 | −0.569 | 0.378 | ||||||
| 4. Been feeling that you are ill? | −0.491 | −0.568 | 0.432 | ||||||
| 5. Been getting any pains in your head? | 0.718 | 0.754 | 0.535 | ||||||
| 6. Been getting a feeling of tightness or pressure in your head? | 0.637 | 0.677 | 0.518 | ||||||
| 7. Been having hot or cold spells? | 0.448 | 0.508 | 0.320 | ||||||
| (B) Anxiety and insomnia | |||||||||
| 1. Been losing much sleep over worry? | 0.572 | 0.610 | 0.414 | ||||||
| 2. Been having difficulty in staying asleep once you fall asleep? | 0.344 | 0.433 | 0.321 | ||||||
| 3. Been feeling constantly under strain? | 0.585 | 0.585 | 0.372 | ||||||
| 4. Been getting edgy or bad tempered? | 0.485 | 0.508 | 0.327 | ||||||
| 5. Been getting scared or panicky for no reason? | 0.635 | 0.612 | 0.444 | ||||||
| 6. Been feeling everything is getting on top of you? | 0.621 | 0.659 | 0.442 | ||||||
| 7. Been feeling nervous and strung-out all the time? | 0.710 | 0.713 | 0.482 | ||||||
| (C) Social dysfunction | |||||||||
| 1. Been managing to keep yourself busy and occupied? | −0.521 | −0.553 | 0. 381 | ||||||
| 2. Been taking longer over the things you do? | −0.670 | −0.644 | 0.427 | ||||||
| 3. Been feeling on the whole that you were doing things well? | −0.692 | −0.689 | 0.480 | ||||||
| 4. Been satisfied with the way you have carried out your tasks? | −0.688 | −0.716 | 0.499 | ||||||
| 5. Been feeling that you are playing a useful part in things? | −0.646 | −0.643 | 0.439 | ||||||
| 6. Been feeling capable of making decisions about things? | −0.349 | −0.403 | 0.220 | ||||||
| 7. Been able to enjoy your normal day-to-day activities? | 0.392 | 0.442 | 0.327 | ||||||
| (D) Severe depression | |||||||||
| 1. Been thinking of yourself as a worthless person? | 0.515 | 0.589 | 0.469 | ||||||
| 2. Been feeling that life is entirely hopeless? | 0.580 | 0.670 | 0.584 | ||||||
| 3. Been feeling that life is not worth living? | −0.591 | −0.699 | 0.560 | ||||||
| 4. Been thinking of the possibility that you may do away with yourself? | −0.974 | −0.957 | 0.827 | ||||||
| 5. Been feeling at times that you could not do anything because your nerves were too bad? | 0.493 | 0.596 | 0.480 | ||||||
| 6. Been finding yourself wishing you were dead and away from it all? | −0.827 | −0.856 | 0.730 | ||||||
| 7. Been finding that the idea of taking your own life keeps coming into your mind? | −0.869 | −0.835 | 0.726 | ||||||
aCommunalities indicate the amount of variance in each variable that is accounted for