Table 2 Principal component analysis in clinical sample 1 ( n = 257)
Principal components | ||||
|---|---|---|---|---|
CORE item # (sub-scale)1 | 1 | 2 | 3 | 4 |
5 (P) I have felt totally lacking in energy and enthusiasm | .84 | |||
15 (P) I have felt panic or terror | .70 | |||
11 (P) Tension and anxiety have prevented me doing important things | .67 | |||
2 (P) I have felt tense, anxious or nervous | .66 | |||
8 (P) I have been troubled by aches, pains or other physical problems | .65 | |||
18 (P) I have had difficulty getting to sleep or staying asleep | .63 | |||
17 (W) I have felt overwhelmed by my problems | .62 | |||
20 (P) My problems have been impossible to put to one side | .60 | |||
10 (F) Talking to people has felt too much for me | .58 | |||
23 (P) I have felt despairing or hopeless | .58 | .35 | ||
14 (W) I have felt like crying | .54 | |||
13 (P) I have been disturbed by unwanted thoughts or feelings | .53 | |||
21 (F) I have been able to do most things I needed to | .49 | .35 | ||
19 (F) I have felt warmth and affection for someone | -.39 | .79 | ||
31 (W) I have felt optimistic about my future | .70 | |||
9 (R) I have thought of hurting myself | .64 | |||
4 (W) I have felt OK about myself | .63 | |||
24 (R) I have thought it would be better if I were dead | .62 | |||
12 (F) I have been happy with the things I have done | .61 | |||
16 (R) I made plans to end my life | .57 | .31 | ||
3 (F) I have felt I have someone to turn to for support when needed | -.33 | .53 | .32 | |
32 (F) I have achieved the things I wanted to | .52 | |||
27 (P) I have felt unhappy | .33 | .46 | ||
7 (F) I have felt able to cope when things go wrong | .42 | |||
1 (F) I have felt terribly alone and isolated | .39 | .33 | ||
25 (F) I have felt criticised by other people | .77 | |||
33 (F) I have felt humiliated or shamed by other people | .74 | |||
30 (P) I have thought I am to blame for my problems and difficulties | .36 | .61 | ||
26 (F) I have thought I have no friends | .55 | |||
28 (P) Unwanted images or memories have been distressing me | .33 | .54 | ||
6 (R) I have been physically violent to others | .77 | |||
22 (R) I have threatened or intimidated another person | .74 | |||
29 (F) I have been irritable when with other people | .35 | .48 | ||
34 (R) I have hurt myself physically or taken dangerous risks with my health | .46 | |||
Eigenvalues | 12.2 | 1.9 | 1.8 | 1.7 |
Explained variance (%) | 35.8 | 5.6 | 5.4 | 4.9 |