Table 3 Reliability of the subscales based on the components extracted by the authors of the scale
Subscale | Cronbach’s alpha (standardized) | Item-scale correlation |
|---|---|---|
disengagement because of pain | 0.76 (0.77) | 0.49 (0.38–0.60) |
pain intensity | 0.57 (0.61) | 0.34 (0.09–0.54) |
pain with ambulation | 0.83 (0.83) | 0.66 (0.56–0.74) |
pain with strenuous activities | 0.77 (0.80) | 0.64 (0.56–0.70) |
pain with other activities | 0.62 (0.61) | 0.38 (0.18–0.56) |