Assessing reproducibility for interval data in health-related quality of life questionnaires: Which coefficient should be used?

Abstract

In contrast to other reliability estimates, test–retest reliability (or reproducibility) captures not only the measurement error of an assessment instrument, but also the stability of the construct measured. Consequently, one would expect any departure from identity (Y=X) of measurement pairs (X first, and Y second measurement) to be treated as ‘error’ by… (More)
DOI: 10.1023/B:QURE.0000021318.92272.2a

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