| Questionnaire subscale | No. of items | Cronbach’s alpha |
| CHAQ.MAC (modified version) | 33 | 0.966 |
| Subscales |
|
|
| Dressing & grooming | 4 | 0.900 |
| Arising | 2 | 0.873 |
| Eating | 3 | 0.738 |
| Walking | 2 | 0.841 |
| Hygiene | 5* | 0.881 |
| Reach | 4 | 0.740 |
| Grip | 6 | 0.693 |
| Activities | 7 | 0.879 |