Fit for purpose and modern validity theory in clinical outcomes assessment.
Michael C EdwardsAshley SlagleJonathan D RubrightR J WirthPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2017)
We situate the concept of fit for purpose within the broader context of validity. By comparing and contrasting the approaches and the situations where they have traditionally been applied, we identify areas of conceptual overlap as well as areas where more discussion and research are needed.
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