Document Detail


How reliable are chance-corrected measures of agreement?
MedLine Citation:
PMID:  8310189     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Chance-corrected measures of agreement are prone to exhibit paradoxical and counter-intuitive results when used as measures of reliability. It is demonstrated that these problems arise with Cohen's kappa as well as with Aickin's alpha. They are the consequence of an analogy to Simpson's paradox in mixed populations. It is further shown that chance-corrected measures of agreement may yield misleading values for binary ratings. It is concluded that improvements in the design and the analysis of reliability studies are a prerequisite for valid and pertinent results.
Authors:
I Guggenmoos-Holzmann
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Statistics in medicine     Volume:  12     ISSN:  0277-6715     ISO Abbreviation:  Stat Med     Publication Date:  1993 Dec 
Date Detail:
Created Date:  1994-03-14     Completed Date:  1994-03-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8215016     Medline TA:  Stat Med     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  2191-205     Citation Subset:  IM    
Affiliation:
Department of Biostatistics and Medical Informatics, Free University of Berlin, Germany.
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MeSH Terms
Descriptor/Qualifier:
Classification
Data Interpretation, Statistical*
Diagnosis*
Epidemiology*
Humans
Likelihood Functions
Linear Models
Models, Statistical*
Observer Variation*
Reproducibility of Results
Sensitivity and Specificity*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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