Table 1.
Exploratory factor analysis factor loadings for the GHQ-12 items with one and two factors, including orthogonal (varimax) and oblique (geomin) rotation
| Orthogonal | Oblique | ||||
|---|---|---|---|---|---|
| Item | One factor | Factor 1 | Factor 2 | Factor 1 | Factor 2 |
| GHQ 1: Have you recently been able to concentrate on daily tasks? (pos) | −.676 | .562 | −.434 | .556 | −.211 |
| GHQ 2: Have you recently been able to enjoy your normal day-to-day activities? (pos) | −.653 | .692 | −.311 | .764 | .007 |
| GHQ 3: Have you recently lost much sleep due to worrying? (neg) | .625 | −.170 | .646 | .016 | .678 |
| GHQ 4: Have you recently been able to face up to your problems? (pos) | −.614 | .647 | −.309 | .707 | −.015 |
| GHQ 5: Have you recently felt that you were playing a useful part in things? (pos) | −.544 | .647 | −.205 | .744 | .109 |
| GHQ 6: Have you recently been feeling unhappy or depressed? (neg) | .823 | −.334 | .768 | −.148 | .733 |
| GHQ 7: Have you recently felt capable of making decisions about things? (pos) | −.595 | .625 | −.291 | .686 | −.006 |
| GHQ 8: Have you recently been losing confidence in yourself? (neg) | .868 | −.264 | .848 | −.032 | .867 |
| GHQ 9: Have you recently felt yourself to be constantly under strain? (neg) | .696 | −.159 | .736 | .061 | .791 |
| GHQ 10: Have you recently been thinking of yourself as a worthless person? (neg) | .862 | −.236 | .859 | .008 | .896 |
| GHQ 11: Have you recently felt that you couldn’t overcome your difficulties? (neg) | .797 | −.285 | .768 | −.086 | .761 |
| GHQ 12: Have you recently been feeling reasonably happy, all things considered? (pos) | −.657 | .545 | −.430 | .535 | −.215 |
| χ2 | 43183 | 9255 | 9255 | ||
| Df | 54 | 43 | 43 | ||
| CFI | .913 | .981 | .981 | ||
| TLI | .894 | .972 | .972 | ||
| RMSEA | .139 | .072 | .072 | ||
CFI, comparative fit index; Df, TLI, Tucker–Lewis index; RMSEA, root-mean-square error of approximation.
Model fit at the bottom.