Validation and interval scale transformation of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) in patients undergoing knee arthroplasty, using the Rasch model

Validation and interval scale transformation of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) in patients undergoing knee arthroplasty, using the Rasch model

Objectives: Interval scale reduce measurement bias compared to ordinal scale. We aimed to evaluate the fit of Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) to the Rasch model and derive the transformation table for interval scale measurement. Methods: Data from osteoarthriti...

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Bibliographic Details
Main Authors: Ying-Ying Leung, Julian Thumboo, Seng-Jin Yeo, Vikki Wylde, Alan Tannant
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Osteoarthritis and Cartilage Open
Subjects:
Knee osteoarthritis
WOMAC
Validation
Interval scale measurement
Online Access:http://www.sciencedirect.com/science/article/pii/S2665913122000905

Internet

http://www.sciencedirect.com/science/article/pii/S2665913122000905

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