Table 4
Cronbach’s alpha for the factors and the global scale
No of items
Cronbach’s alpha
95% CI
Factor 1
3
0.85
0.83 to 0.86
Factor 2
3
0.78
0.71 to 0.84
Factor 3
4
0.68
0.56 to 0.79
Factor 4
4
0.65
0.57 to 0.72
Global scale
14
0.76
0.73 to 0.80