Table 2. Summary of HAPA inventory psychometric properties .
| Scale | No. of items | Mean (SD) | Kurtosis | Skewness | Cronbach α | ICC | Floor effect (%) | Ceiling effect (%) |
| Risk perception | 5 | 22.38 (6.55) | 1.20 | -0.588 | 0.91 | 0.971 | 2.7 | 5.4 |
| Action self-efficacy | 3 | 13.83 (4.95) | 1.69 | -0.737 | 0.93 | 0.962 | 5.4 | 3.4 |
| Outcome expectations | 5 | 23.79 (5.86) | 0.58 | 0.487 | 0.92 | 0.898 | 0 | 0 |
| Behavioral intention | 3 | 10.52 (4.73) | 1.49 | -0.162 | 0.63 | 0.862 | 6.1 | 1.4 |
| Action and coping planning | 7 | 25.06 (8.89) | 1.55 | -0.358 | 0.97 | 0.905 | 5.4 | 0.7 |
| Maintenance self-efficacy | 9 | 29.81 (10.05) | 1.77 | 0.167 | 0.90 | 0.988 | 2.7 | 1.4 |
| Recovery self-efficacy | 4 | 15.6 (6.52) | 1.34 | -0.078 | 0.65 | 0.922 | 5.4 | 2.0 |