Quality | Definition | Criteria to rate the quality |
---|---|---|
Content validity | The extent to which the domain of interest is comprehensively sampled by the items in the measure | Face validity by participants and research team |
Readability | The questionnaire is understandable for all patients | Completed questionnaire |
Qualitative feedback | ||
Internal consistency | The extent to which items in a subscale are inter-correlated; a measure of the homogeneity of the subscale |
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Floor-ceiling effects | The measure fails to demonstrate a worse score in patients who were clinically deteriorated and/or an improved score in patients who clinically improved | |
Responsiveness | The ability to detect important change over time in the concept being measured | Face evaluation by research team |
Practicality considerations | Burden to student and administration | Time to complete |
Ease of scoring |