Psychometric properties | N | % | M | SD | Md | min | max |
---|---|---|---|---|---|---|---|
Internal consistency | 30 | 97 | 1.8 | 1.4 | 2.0 | -1 | 4 |
Convergent validity | 5 | 16 | 0.6 | 1.4 | 4.0 | 0 | 4 |
Discriminant validity | 5 | 16 | 0.6 | 1.4 | 4.0 | 0 | 4 |
Known-groups validity | 2 | 6 | 0.2 | 0.9 | 3.5 | 0 | 4 |
Predictive validity | 2 | 6 | 0.1 | 0.2 | 1.0 | 0 | 1 |
Concurrent validity | 10 | 32 | 0.5 | 1.0 | 2.0 | -1 | 3 |
Structural validity | 21 | 68 | 1.5 | 1.8 | 2.0 | -1 | 4 |
Responsiveness | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 |
Norms | 14 | 45 | 1.3 | 1.6 | 3.0 | 0 | 4 |
Usability | 31 | 100 | 3.2 | 0.6 | 3.0 | 2 | 4 |
Test-retest reliability | 3 | 10 | 0.1 | 0.3 | 1.0 | 0 | 1 |
Face and content validity | 29 | 94 | 0.9 | 0.2 | 1.0 | 0 | 1 |