Table 2.
Analyses in the three study phases
| Analysis | Phase no. | ||
|---|---|---|---|
| 1a | 2b | 3c | |
| Content validity (content validity index) | X | ||
| Data quality | X | X | |
| Floor and ceiling effects | X | X | |
| Test-retest reliability (intraclass correlation coefficient) | X | ||
| Internal consistency (Cronbach’s alpha and corrected total-item correlation) | X | ||
| Construct validity (convergent and discriminant hypothesis testing) | X | ||
Note. aPhase 1, Semantic equivalence including the research team and a user panel; bPhase 2, test-retest; cPhase 3, UJACAS included in Prospective RELOC-AGE