Table 6 Convergent Validity: Pearson Correlation Coefficients between the MFI-20, SF-36, SDS, and STAI†in overall sample.
From: Further validation of the Multidimensional Fatigue Inventory in a US adult population sample
| Â | MFI-20 | |||||
|---|---|---|---|---|---|---|
| Â | General Fatigue | Physical Fatigue | Reduced Activity | Reduced Motivation | Mental Fatigue | Total Score |
SF-36 | Â | Â | Â | Â | Â | Â |
   Physical Functioning | -0.496 | -0.643 | -0.522 | -0.490 | -0.376 | -0.564 |
   Role Physical | -0.591 | -0.589 | -0.464 | -0.502 | -0.429 | -0.599 |
   Bodily Pain | -0.498 | -0.546 | -0.386 | -0.390 | -0.338 | -0.486 |
   Social Functioning | -0.553 | -0.535 | -0.506 | -0.592 | -0.500 | -0.645 |
   Mental Health | -0.547 | -0.461 | -0.436 | -0.564 | -0.550 | -0.631 |
   Role Emotional | -0.462 | -0.409 | -0.379 | -0.435 | -0.480 | -0.530 |
   Vitality | -0.825 | -0.689 | -0.582 | -0.708 | -0.574 | -0.811 |
   General Health | -0.659 | -0.713 | -0.533 | -0.562 | -0.479 | -0.672 |
   PCS‡ | -0.540 | -0.671 | -0.492 | -0.450 | -0.327 | -0.544 |
   MCS‡ | -0.563 | -0.448 | -0.455 | -0.589 | -0.563 | -0.653 |
SDS | Â | Â | Â | Â | Â | Â |
   SDS Index | 0.626 | 0.541 | 0.498 | 0.649 | 0.608 | 0.718 |
STAI | Â | Â | Â | Â | Â | Â |
   State-Anxiety Score | 0.413 | 0.352 | 0.336 | 0.457 | 0.469 | 0.503 |
   Trait-Anxiety Score | 0.519 | 0.421 | 0.423 | 0.558 | 0.563 | 0.620 |