Table 3 Communalities and factor loading of CISS
Item | Communalities | Factor loading | Cronbach alpha |
|---|---|---|---|
1. I feel isolated/alone due to my knee pain. | 0.61 | 0.78 | 0.92 |
2. I’m ashamed of talking with others about my knee pain or symptoms. | 0.65 | 0.80 |  |
3. I feel inferior and disregard myself because of my knee pain. | 0.77 | 0.88 | Â |
4. I feel that my knee pain is embarrassing. | 0.76 | 0.87 | Â |
5. I’m insecure due to my knee pain. | 0.76 | 0.87 |  |
6. I feel that others may evaluate me negatively (or criticize me) due to my knee pain and symptoms. | 0.57 | 0.75 | Â |
7. I feel inadequate because of my knee pain and symptoms. | 0.67 | 0.82 | Â |