Measurement properties were compared by determining their feasibility, ceiling effect, and discriminatory power (Shannon indices) for 3L and 5L.
The present study compares the measurement properties of EuroQol's EQ-5D 3L and the newer 5L in terms of their feasibility, ceiling effect and discriminatory power (Shannon indices) as well as the association between clinical characteristics and EQ index score.
The present study aims to compare the measurement properties of 3L and 5L in terms of their feasibility, ceiling effect and discriminatory power (Shannon indices) in a general population sample.
Responsiveness, feasibility, floor and ceiling effects were also tested.
In our comparison of 3L and 5L, both were comparable in terms of feasibility, but 5L had lower ceiling effect and higher discriminatory power.
The assessment tools were tested for floor and ceiling effects, the feasibility of the assessments, and acceptability as perceived by the patients.
The PROs were assessed in relation to the following for feasibility: response rate, floor and ceiling effects, missing items, and the need for manual validation of the scanned PROs.
Feasibility analyses examined data completeness, floor and ceiling effects, and the dispersion of scores.
Our feasibility criteria were response rate, floor and ceiling effects, missing items, and need for manual validation of the scanned PROs.
Feasibility, reliability, internal consistency, construct validity (correlation with WOMAC), ceiling and floor effects and sensitivity to change were assesses for the present study, in concordance with previous validation-related articles [ 6, 12, 14].
The 3L and 5L were compared in terms of distribution, ceiling, convergent validity, discriminative power, test-retest reliability, feasibility, and patient preference.
