Exploring differential item functioning in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)

Exploring differential item functioning in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)

<p>Abstract</p> <p>Background</p> <p>The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a widely used patient reported outcome in osteoarthritis. An important, but frequently overlooked, aspect of validating health outcome measures is to estab...

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Bibliographic Details
Main Authors: Pollard Beth, Johnston Marie, Dixon Diane
Format: Article
Language:English
Published: BMC 2012-12-01
Series:BMC Musculoskeletal Disorders
Subjects:
Osteoarthritis
WOMAC
Psychometrics
Item bias
Differential item functioning
Measurement equivalence
Online Access:http://www.biomedcentral.com/1471-2474/13/265

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