Item | Floor effect N(%) | Ceiling effect N(%) | Item-total Correlation Coefficient | Cronbach’s alpha if item deleted (14-item scale) | Cronbach’s alpha if item deleted (7-item scale) |
---|---|---|---|---|---|
I’ve been feeling optimistic about the futurea | 14 (4.8) | 49 (16.7) | 0.50 | 0.90 | 0.83 |
I’ve been feeling usefula | 5 (1.7) | 71 (24.1) | 0.66 | 0.89 | 0.80 |
I’ve been feeling relaxeda | 19 (6.5) | 62 (21.1) | 0.59 | 0.90 | 0.82 |
I’ve been feeling interested in other people | 7 (2.4) | 75 (25.5) | 0.38 | 0.90 |  |
I’ve had energy to spare | 13 (4.4) | 60 (20.4) | 0.62 | 0.89 |  |
I’ve been dealing with problems wella | 7(2.4) | 82 (27.9) | 0.70 | 0.89 | 0.80 |
I’ve been thinking clearlya | 5 (1.7) | 67 (22.8) | 0.68 | 0.89 | 0.80 |
I’ve been feeling good about myself | 10 (3.4) | 109 (37.1) | 0.64 | 0.89 |  |
I’ve been feeling close to other peoplea | 7 (2.4) | 55 (18.7) | 0.59 | 0.90 | 0.82 |
I’ve been feeling confident | 6 (2.0) | 120 (40.8) | 0.69 | 0.89 |  |
I’ve been able to make up mind about thingsa | 6 (2.0) | 59 (20.1) | 0.66 | 0.89 | 0.81 |
I’ve been feeling loved | 7 (2.4) | 79 (26.9) | 0.57 | 0.90 |  |
I’ve been interested in new things | 8 (2.7) | 85 (28.9) | 0.50 | 0.90 |  |
I’ve been feeling cheerful | 10 (3.4) | 62 (21.1) | 0.70 | 0.89 |  |