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Standardised Cronbach's alpha, item-total correlation and alpha with deleted items
| Standardised Cronbach's alpha | 0.63 | |
| Correlation with total | Alpha if deleted | |
| Eating | 0.30 | 0.59 |
| Speaking | 0.29 | 0.59 |
| Cleaning mouth | 0.37 | 0.57 |
| Sleeping | 0.23 | 0.61 |
| Smiling | 0.38 | 0.56 |
| Emotional status | 0.25 | 0.60 |
| Studying | 0.33 | 0.58 |
| Social contact | 0.35 | 0.57 |
