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Investigating the response scale of the EORTC QLQ-C30 in German cancer patients and a population survey

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Koller, Michael ; Müller, Karolina ; Nolte, Sandra ; Schmidt, Heike ; Harvey, Christina ; Mölle, Ulrike ; Boehm, Andreas ; Engeler, Daniel ; Metzger, Jürg ; Sztankay, Monika ; Holzner, Bernhard ; Groenvold, Mogens ; Kuliś, Dagmara ; Bottomley, Andrew
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 21 Apr 2022 14:59


Background: The European Organization for research and Treatment of Cancer (EORTC) Core Quality of Life Questionnaire (QLQ-C30) scales are scored on a 4-point response scale, ranging from not at all to very much. Previous studies have shown that the German translation of the response option quite a bit as massig violates interval scale assumptions, and that ziemlich is a more appropriate ...


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