Development and validation of a self-efficacy scale for use in British patients wih rheumatoid arthritis (RASE)

Hewlett, Sarah; Cockshott, Zoe; Kirwan, John R.; Barrett, J; Stamp, J; Haslock, I

Abstract

Objective: Current arthritis self-efficacy scales have attracted some criticism. Therefore, the aim of this study was to develop and validate a measure of self-efficacy for use in British rheumatoid arthritis patients [Rheumatoid Arthritis Self-efficacy (RASE) scale].

Methods: Phase I: item generation of self-management strategies by rheumatology professionals and patients to create a pilot RASE. Phase II: examination of the internal structure (n=88) using correlation coefficients and principal component analysis (PCA) to create the final RASE. Phase III: reliability in 23 patients. Phase IV: comprehension, construct validity and sensitivity to change in 48 rheumatoid arthritis patients undergoing a self-management programme, using correlation coefficients, PCA and inter-item correlation.

Results: Phase I: of 166 self-management items generated, 100 commonly cited items were selected for the pilot RASE. Phase II: using a correlation matrix and PCA, a 28-item RASE was created. Phase III: good 4-week reliability was seen (r=0.889, P

• Journal Article Type: Article
• Publication Date: Nov 1, 2001
• Journal: Rheumatology
• Print ISSN: 1462-0324
• Publisher: Oxford University Press (OUP)
• Peer Reviewed: Peer Reviewed
• Volume: 40
• Issue: 11
• Pages: 1221-1230
• DOI: https://doi.org/10.1093/rheumatology/40.11.1221
• Keywords: rheumatoid arthritis, self-efficacy, RASE
• Public URL: https://uwe-repository.worktribe.com/output/1084922
• Publisher URL: http://dx.doi.org/10.1093/rheumatology/40.11.1221