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. 2008 Apr 18;10(2):e11. doi: 10.2196/jmir.955

Table 4.

Internal consistency of the subscales

Item Mean (SD)* Corrected
Item-Total Correlation
Cronbach Alpha
if Item Deleted
Benefits: Cronbach alpha .85
1. Computers will help doctors with routine lifestyle questions 3.9 (0.87) .77 .80
2. The computer is a good way to ask lifestyle questions 3.7 (0.94) .62 .83
3. It would save doctors time. 3.7 (0.91) .61 .83
4. Doctors will make better assessments with such computer systems 3.3 (0.85) .59 .83
5. I would feel comfortable answering questions on a computer 3.9 (0.85) .66 .82
6. Computers can be trusted 3.4 (0.95) .57 .84
Privacy-Barrier: Cronbach alpha .70 (alpha .81)
7. I would worry about confidentiality 3.3 (1.1) .53 .54
8. I do not want certain information about me on the computer 3.4 (1.1) .52 .55
9. Too many mistakes will be made with computer 2.6 (0.84) .46 .64
Interaction-Barrier: Cronbach alpha .67 (alpha .80)
10. Doctors would spend less time with patients 3.4 (0.99) .42 .66
11. There will be loss of personal touch of a doctor 3.4 (1.2) .56 .47
12. I would find another doctor 2.1 (0.97) .49 .57
Interest: Cronbach alpha .50 (alpha .75)
13. I would want to read patient information sheet 4.3 (0.70) .34
14. I would answer honestly 4.4 (0.63) .34

*Scale 1 to 5: strongly disagree, agree, not sure, agree, strongly agree.

Adjusted reliability coefficient, adjusted to compare to scales with six items.