Journal article
Measurement of observer agreement
Radiology, v 228(2), pp 303-308
Aug 2003
PMID: 12819342
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Statistical measures are described that are used in diagnostic imaging for expressing observer agreement in regard to categorical data. The measures are used to characterize the reliability of imaging methods and the reproducibility of disease classifications and, occasionally with great care, as the surrogate for accuracy. The review concentrates on the chance-corrected indices, kappa and weighted kappa. Examples from the imaging literature illustrate the method of calculation and the effects of both disease prevalence and the number of rating categories. Other measures of agreement that are used less frequently, including multiple-rater kappa, are referenced and described briefly.
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Details
- Title
- Measurement of observer agreement
- Creators
- Harold L Kundel - University of PennsylvaniaMarcia Polansky - University of Pennsylvania
- Publication Details
- Radiology, v 228(2), pp 303-308
- Grant note
- P01 CA53141 / NCI NIH HHS
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:000184381100003
- Scopus ID
- 2-s2.0-0041842496
- Other Identifier
- 991019168316704721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Radiology, Nuclear Medicine & Medical Imaging