Table 2 Descriptive Statistics of the 9 MADRS-S Items and Total Score.
Missing Values | Mean ± SD | Correlationa | Cronbach's α | % Floor | %Ceiling | |
|---|---|---|---|---|---|---|
Item 1: Mood | 0 | 1.86 ± 0.84 | 0.68 *** | 0.80b | 10.1% | 12.9% |
Item 2: Feelings of Unease | 0 | 2.06 ± 0.63 | 0.61 *** | 0.82b | 2.2% | 15.5% |
Item 3: Sleep | 0 | 1.94 ± 0.68 | 0.43 *** | 0.83b | 4.3% | 10.1% |
Item 4: Appetite | 0 | 1.39 ± 0.93 | 0.43 *** | 0.84b | 21.6% | 7.6% |
Item 5: Ability to Concentrate | 0 | 1.92 ± 0.66 | 0.64 *** | 0.81b | 2.5% | 10.4% |
Item 6: Initiative | 0 | 1.91 ± 0.70 | 0.62 *** | 0.81b | 4.0% | 7.2% |
Item 7: Emotional Involvement | 0 | 1.58 ± 0.75 | 0.65 *** | 0.81b | 7.6% | 5.4% |
Item 8: Pessimism | 0 | 2.06 ± 0.72 | 0.39 *** | 0.84b | 1.1% | 22.7% |
Item 9: Zest for Life | 0 | 1.44 ± 0.75 | 0.55 *** | 0.82b | 8.3% | 4.7% |
MADRS-S Total Score | 0 | 16.2 ± 4.4 | -- | 0.84c | 0.0% | 0.4% |