Table 2 Item total correlation, Cronbach’s α for excluded items, and mean Cronbach’s α for each domain of the Brazilian Portuguese version of the Upper Extremity Questionnaire revised (MUEQ-Br revised)
Question | Item total correlation | Cronbach’s α for excluded items |
|---|---|---|
Work Station (Maximum domain score = 6 points) | ||
1. My desk (table) at work has suitable height. | 0.52 | 0.71 |
2. I can adjust my chair height. | 0.28 | 0.70 |
3. The chair I use during my work supports my lower back. | 0.35 | 0.70 |
4. My keyboard is placed directly in front of me. | 0.36 | 0.72 |
5. The screen is placed directly in front of me. | 0.48 | 0.70 |
6. I have enough space to work at my office. | 0.36 | 0.70 |
Mean Cronbach’s α for the domain = 0.70 | ||
Body posture (Maximum domain score = 18 points) | ||
7. During my work, I sit in an awkward body posture. | 0.51 | 0.73 |
8. At work, I perform repetitive tasks. | 0.59 | 0.72 |
9. I find my job physically exhausting. | 0.65 | 0.72 |
10. My head is twisted towards the left or right. | 0.42 | 0.74 |
11. My trunk is twisted towards the left or right. | 0.68 | 0.71 |
12. My trunk is in a misaligned position | 0.44 | 0.74 |
Mean Cronbach’s α for the domain = 0.75 | ||
Job control (Maximum domain score = 27 points) | ||
13. I decide how to perform my job task. | 0.54 | 0.74 |
14. I participate with others in decision making. | 0.61 | 0.72 |
15. I decide my own task changes. | 0.60 | 0.73 |
16. I determine the time and speed of job tasks. | 0.53 | 0.74 |
17. I solve work problems by myself. | 0.38 | 0.74 |
18. My work develops my abilities. | 0.68 | 0.72 |
19. In my work, I learn new things. | 0.64 | 0.73 |
20. I have to be creative in my work. | 0.62 | 0.72 |
21. I undertake different tasks in my work. | 0.47 | 0.74 |
Mean Cronbach’s α for the domain = 0.75 | ||
Job demand (Maximum domain score = 21 points) | ||
22. I work under extensive pressure. | 0.66 | 0.74 |
23. I find it difficult to finish my work tasks on time. | 0.71 | 0.73 |
24. I take extra hours to finish my work tasks. | 0.61 | 0.74 |
25. I do not have enough time to finish my job task. | 0.63 | 0.74 |
26. At work, I speed to finish my tasks on time. | 0.65 | 0.75 |
27. I find my work tasks difficult. | 0.55 | 0.76 |
28. I have too many job tasks. | 0.55 | 0.75 |
Mean Cronbach’s α for the domain = 0.77 | ||
Break time (Maximum domain score = 18 points) | ||
29. I can plan my work breaks. | 0.69 | 0.73 |
30. I can divide my work time. | 0.65 | 0.73 |
31. I can decide when to take a break. | 0.67 | 0.74 |
32. I alternate my body posture. | 0.51 | 0.75 |
33. I alternate my job task. | 0.56 | |
34. I find my work breaks sufficient. | 0.57 | 0.73 |
Mean Cronbach’s α for the domain = 0.77 | ||
Social Support (Maximum domain score = 18 points) | ||
35. The workflow goes smoothly. | 0.60 | 0.75 |
36. My work task depends on other colleagues. | 0.64 | 0.75 |
37. My work atmosphere is comfortable. | 0.60 | 0.75 |
38. If I make a mistake in my work task, I find support from my colleagues. | 0.66 | 0.75 |
39. If I make a mistake in my work task, I find support from my supervisors. | 0.75 | 0.74 |
40. My colleagues are friendly. | 0.58 | 0.76 |
41. My supervisors are friendly. | 0.73 | 0.74 |
Mean Cronbach’s α for the domain = 0.77 |