Table 2 Corrected item-total correlations and Cronbach’s alpha values if an item is deleted in the MADRS-BM
MADRS-BM | Scale mean if item is deleted | Scale variance if item is deleted | Corrected item-total correlation | Cronbach’s alpha if item is deleted |
|---|---|---|---|---|
Mood | 7.02 | 75.55 | 0.79 | 0.75 |
Feelings of unease | 6.69 | 75.53 | 0.78 | 0.75 |
Sleep | 6.68 | 78.25 | 0.57 | 0.76 |
Appetite | 7.06 | 78.14 | 0.62 | 0.76 |
Ability to concentrate | 6.82 | 75.31 | 0.77 | 0.75 |
Initiative | 6.87 | 75.55 | 0.80 | 0.75 |
Emotional involvement | 6.99 | 75.68 | 0.82 | 0.75 |
Pessimism | 6.83 | 75.13 | 0.80 | 0.75 |
Zest for life | 7.08 | 77.08 | 0.76 | 0.76 |
Total score | 3.66 | 21.32 | 1.00 | 0.91 |