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Table 6 Internal consistency of the twelve Factors

From: Complaints of the arm, neck and shoulder among computer office workers in Sudan: a prevalence study with validation of an Arabic risk factors questionnaire

Domain

Factors

Internal consistency

(Cronbach's alpha)

Items numbers

Work Station

Factor 1: Office equipment

0.50

13.17.18.20

 

Factor 2: Computer position

0.48

16.19

Body Posture

Factor 3: Head and body posture

0.88

25.26.27.28. 29.30

 

Factor 4: Awkward body posture

0.66

21. 22. 24. 32

Break Time

Factor 5: Autonomy

0.76

50.51.54.55

 

Factor 6: Break quality

0.79

47.48.52.53.56

Job Control

Factor 7: Skill discretion

0.84

31.32.33.34.36.37

 

Factor 8: Decision authority

0.76

35.38.39

Job Demands

Factor 9: Time pressure

0.71

41.42.45.

 

Factor 10: Task complexity

0.53

40.43.46

Social Support

Factor 11: Social support

0.94

70.71.72.73.74.75.76

 

Factor 12: Work flow

0.76

65.66.67.68.69