Table 4 EFA for GHQ-12 (n = 525)

1. Able to concentrate

0.555

2. Lost much sleep

0.855

3. Playing a useful part

0.660

4. Capable of making decisions

0.586

5. Under stress

0.479

6. Could not overcome difficulties

0.628

7. Enjoy your day-to-day activities

0.789

8. Face up to problems

0.509

9. Feeling unhappy and depressed

0.554

10. Losing confidence

0.692

11. Thinking of self as worthless

0.606

12. Feeling reasonably happy

0.489

% of variance

21.206

17.339

11.675

Cumulative % of variance

21.206

38.545

50.220

KMO

Bartlett’s test of sphericity

Chi² = 1249.186

df = 66

Sig. = .000