Table 2.
Measures | Cronbach’s Alpha* | |
---|---|---|
Pre-Operative | Follow-Up | |
WOMAC Pain | 0.79 | 0.83 |
WOMAC Stiffness | 0.76 | 0.83 |
WOMAC Function | 0.95 | 0.87 |
SF-36 Mental Health | 0.75 | 0.84 |
SF-36 Physical Function | 0.84 | 0.87 |
The generally accepted threshold for acceptable internal consistency is a Cronbach’s alpha value of 0.7.