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Psychometrics evaluation of Charcot-Marie-Tooth Neuropathy Score (CMTNSv2) second version, using Rasch analysis
Journal article   Peer reviewed

Psychometrics evaluation of Charcot-Marie-Tooth Neuropathy Score (CMTNSv2) second version, using Rasch analysis

Reza Sadjadi, Mary M Reilly, Michael E Shy, Davide Pareyson, Matilde Laura, Sinead Murphy, Shawna M.E Feely, Tiffany Grider, Chelsea Bacon, Giuseppe Piscosquito, …
Journal of the peripheral nervous system, Vol.19(3), pp.192-196
09/2014
DOI: 10.1111/jns.12084
PMCID: PMC4303498
PMID: 25400013
url
http://doi.org/10.1111/jns.12084View
Open Access

Abstract

Charcot-Marie-Tooth Neuropathy Score second version (CMTNSv2) is a validated clinical outcome measure developed for use in clinical trials to monitor disease impairment and progression in affected CMT patients. Currently, all items of CMTNSv2 have identical contribution to the total score. We used Rasch analysis to further explore psychometric properties of CMTNSv2, and in particular, category response functioning and their weight on the overall disease progression. Weighted category responses represent a more accurate estimate of actual values measuring disease severity and therefore could potentially be used in improving the current version.
psychometrics Rasch analysis Charcot-Marie-Tooth Neuropathy Score (CMTNS2) second version Charcot-Marie-Tooth outcome measures

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