Table 1.
Items characteristics of the preliminary Fatigue Assessment Scale for Construction Workers
| Items | Source | Physical fatigue | Mental fatigue | |
|---|---|---|---|---|
| Q1. | Thinking requires effort | 20-item CIS | ✓ | |
| Q2. | My thoughts easily wander | 20-item CIS | ✓ | |
| Q3. | Lacking in energy | 14-item FQ | ✓ | |
| Q4. | I have less strength in muscles | 14-item FQ | ✓ | |
| Q5. | Whole body feels tired | 30-item Fatigue Scale | ✓ | |
| Q6. | Legs feel tired/heavy | 30-item Fatigue Scale | ✓ | |
| Q7. | Yawning | 30-item Fatigue Scale | ✓ | |
| Q8. | Eyes feel strained | 30-item Fatigue Scale | ✓ | |
| Q9. | Shoulder feels stiffness or pain | 30-item Fatigue Scale | ✓ | |
| Q10. | Hearing ability reduced | 24-item TIFS | ✓ | |
| Q11. | Feel stiff in the legs and arms | 24-item TIFS | ✓ | |
| Q12. | My body movement slows down | Focus group survey | ✓ | |
| Q13. | My arms/legs feel numb | Focus group survey | ✓ | |
| Q14. | My mind feels clear (positive question) | Focus group survey | ✓ | |
| Q15. | I feel cramps in muscles | Focus group survey | ✓ | |
| Q16. | My joints feel achy | Focus group survey | ✓ | |