Structural validity of the rheumatology attitudes index in systemic sclerosis: Analysis from the ucla scleroderma quality of life study

Shadi Gholizadeh, Sarah D. Mills, Rina S. Fox, Erin L. Merz, Scott C. Roesch, Philip J. Clements, Suzanne Kafaja, Daniel E. Furst, Dinesh Khanna, Vanessa L. Malcarne*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Pages (from-to)795-798
Number of pages4
JournalJournal of Rheumatology
Volume44
Issue number6
DOIs
StatePublished - Jun 1 2017

Keywords

  • ASSESSMENT INDiCES
  • HELPLESSNESS
  • SYSTEMIC SCLEROSIS
  • VALIDiTY

ASJC Scopus subject areas

  • Rheumatology
  • Immunology and Allergy
  • Immunology

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