Background:The Patient-Rated Elbow Evaluation (PREE) is a commonly used self-reported outcome measure in patients with elbow dysfunctions. Aims: The purpose of this study was to conduct an exploratory factor analysis (EFA) of the newly translated and crossculturally adapted Patient-Rated Elbow Evaluation-Arabic version (PREE-AR). Also, to examine its floor and ceiling effects. Patients and Methods: An EFA using the principal component analysis (PCA) method was conducted on a sample of 88 participants with elbow pain. The oblique (nonorthogonal) rotation method was used. The Eigenvalue of 1.00 was used as a cutoff point to retain a factor. A scree plot was produced to visually examine the eigenvalues. Item loading on factors with a value greater than 0.4 was considered enough to show a satisfactory inclusion in the structure. A floor or a ceiling effect was considered to be present if more than 15% of participants scored at the lowest or the highest scores respectively. Results: The Kaiser-Meyer-Olkin (KMO) value of 0.891 with Bartlett's test of sphericity (P<0.001) justified the appropriateness of running the factor analysis. The analysis produced a three-factor structure which accounted for 66% of the total variance. Most of the "function" items loaded on factor number1 with less loading of the "pain" items of the threefactor structure. All participants scored outside the 15% threshold of the highest and the lowest total score of the questionnaire.
Conclusion:The newly adapted PREE-AR items are loaded on a three-factor structure and the questionnaire does not have a floor or a ceiling effect.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.