Table 2 Item properties of the MacNew questionnaire (N = 5692)
Item | Missing values(%) | Mean | SD | Floor effect(%) | Ceiling effect(%) | Corrected Item-Total Correlation | Scale | |
|---|---|---|---|---|---|---|---|---|
1. | Frustrated | 2.2 | 4.27 | 1.74 | 6.5 | 13.0 | 0.73 | E |
2. | Worthless | 2.5 | 5.01 | 1.81 | 4.0 | 29.6 | 0.75 | E |
3. | Confident | 3.2 | 4.22 | 1.74 | 6.5 | 11.1 | 0.60 | E |
4. | Down in the dumps | 1.9 | 4.71 | 1.72 | 3.6 | 20.2 | 0.84 | E |
5. | Relaxed | 2.5 | 3.61 | 1.79 | 11.2 | 5.9 | 0.65 | E |
6. | Worn out | 2.0 | 3.55 | 1.63 | 10.6 | 4.8 | 0.69/0.62 | E/P |
7. | Happy with personal life | 2.5 | 3.84 | 1.31 | 5.6 | 3.6 | 0.66 | E |
8. | Restless | 3.0 | 4.63 | 1.63 | 2.8 | 15.6 | 0.74 | E |
9. | Short of breath | 2.6 | 4.59 | 1.72 | 3.8 | 17.7 | 0.56 | P |
10. | Tearful | 2.1 | 5.26 | 1.63 | 1.6 | 34.0 | 0.68 | E |
11. | More dependent | 3.4 | 4.78 | 1.79 | 4.7 | 23.0 | 0.61 | S |
12. | Social activities | 3.7 | 3.93 | 2.06 | 17.5 | 14.5 | 0.67 | S |
13. | Others/less confidence in you | 4.1 | 5.88 | 1.42 | 1.1 | 48.0 | 0.51 | E |
14. | Chest pain | 3.1 | 4.63 | 1.80 | 5.7 | 20.3 | 0.52 | P |
15. | Lack self-confidence | 3.4 | 5.08 | 1.60 | 1.7 | 25.6 | 0.74 | E |
16. | Aching legs | 2.5 | 4.20 | 1.84 | 7.6 | 15.6 | 0.54 | P |
17. | Sports/exercise limited | 9.5 | 3.44 | 2.09 | 25.6 | 10.5 | 0.70 | S |
18. | Frightened | 3.0 | 4.61 | 1.74 | 4.3 | 18.7 | 0.75 | E |
19. | Dizzy/lightheaded | 2.9 | 4.94 | 1.65 | 2.6 | 24.7 | 0.55 | P |
20. | Restricted or limited | 4.3 | 3.83 | 1.95 | 14.4 | 10.3 | 0.77 | S |
21. | Unsure about exercise | 6.3 | 3.92 | 1.87 | 12.4 | 11.3 | 0.62 | S |
22. | Overprotective family | 4.5 | 3.43 | 2.08 | 23.7 | 13.1 | 0.41 | S |
23. | Burden on others | 3.8 | 5.71 | 1.59 | 2.1 | 46.6 | 0.49 | S |
24. | Excluded | 3.8 | 4.82 | 2.04 | 9.1 | 30.6 | 0.70 | S |
25. | Unable to socialize | 3.5 | 5.49 | 1.77 | 3.4 | 43.2 | 0.65 | S |
26. | Physically restricted | 4.1 | 3.80 | 1.98 | 15.3 | 10.8 | 0.76 | S |
27. | Sexual intercourse | 26.2 | 3.91 | 2.45 | 29.3 | 26.7 | 0.45 | S |