Methodological issues regarding power of classical test theory (CTT) and item response theory (IRT)-based approaches for the comparison of patient-reported outcomes in two groups of patients - a simulation study

Methodological issues regarding power of classical test theory (CTT) and item response theory (IRT)-based approaches for the comparison of patient-reported outcomes in two groups of patients - a simulation study

<p>Abstract</p> <p>Background</p> <p>Patients-Reported Outcomes (PRO) are increasingly used in clinical and epidemiological research. Two main types of analytical strategies can be found for these data: classical test theory (CTT) based on the observed scores and models...

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Bibliographic Details
Main Authors: Boyer François, Kubis Gildas, Le Néel Tanguy, Hardouin Jean-Benoit, Sébille Véronique, Guillemin Francis, Falissard Bruno
Format: Article
Language:English
Published: BMC 2010-03-01
Series:BMC Medical Research Methodology
Online Access:http://www.biomedcentral.com/1471-2288/10/24

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