Imputation by the mean score should be avoided when validating a Patient Reported Outcomes questionnaire by a Rasch model in presence of informative missing data

Abstract

BACKGROUND Nowadays, more and more clinical scales consisting in responses given by the patients to some items (Patient Reported Outcomes - PRO), are validated with models based on Item Response Theory, and more specifically, with a Rasch model. In the validation sample, presence of missing data is frequent. The aim of this paper is to compare sixteen… (More)
DOI: 10.1186/1471-2288-11-105

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Cite this paper

@inproceedings{Hardouin2011ImputationBT, title={Imputation by the mean score should be avoided when validating a Patient Reported Outcomes questionnaire by a Rasch model in presence of informative missing data}, author={Jean-Benoit Hardouin and Ronan M Conroy and V{\'e}ronique S{\'e}bille}, booktitle={BMC medical research methodology}, year={2011} }