Author:
Gholizadeh Shadi,Mills Sarah D.,Fox Rina S.,Merz Erin L.,Roesch Scott C.,Clements Philip J.,Kafaja Suzanne,Furst Daniel E.,Khanna Dinesh,Malcarne Vanessa L.
Abstract
Objective.To evaluate the structural validity of the Rheumatology Attitudes Index (RAI), a widely used measure of rheumatic disease–related helplessness in patients with systemic sclerosis (SSc).Methods.Patients with physician-confirmed SSc from the University of California, Los Angeles (UCLA) Scleroderma Quality of Life Study (n = 208) received clinical examinations and completed self-report questionnaires. The structural validity of the RAI was examined through confirmatory and exploratory factor analysis (CFA/EFA).Results.A tenable factor structure was not identified through CFA or EFA.Conclusion.The present structural analysis did not support the use of the RAI with SSc patients.
Publisher
The Journal of Rheumatology
Subject
Immunology,Immunology and Allergy,Rheumatology