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Power and sample size determination for the group comparison of patient-reported outcomes using the Rasch model: impact of a misspecification of the parameters

BACKGROUND: Patient-reported outcomes (PRO) are important as endpoints in clinical trials and epidemiological studies. Guidelines for the development of PRO instruments and analysis of PRO data have emphasized the need to report methods used for sample size planning. The Raschpower procedure has bee...

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Bibliografiske detaljer
Udgivet i:BMC Med Res Methodol
Main Authors: Blanchin, Myriam, Guilleux, Alice, Perrot, Bastien, Bonnaud-Antignac, Angélique, Hardouin, Jean-Benoit, Sébille, Véronique
Format: Artigo
Sprog:Inglês
Udgivet: BioMed Central 2015
Fag:
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC4373307/
https://ncbi.nlm.nih.gov/pubmed/25880670
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/s12874-015-0011-4
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