The Arabic Patient-Rated Elbow Evaluation Questionnaire Has No Floor or Ceiling Effect, and The Items Load on A Three-Factor Structure Using Principal Component Analysis
Awad, C., Fayaz, N., Kaddah, M., Mostafa, F., Abdelmegeed, M. (2022). The Arabic Patient-Rated Elbow Evaluation Questionnaire Has No Floor or Ceiling Effect, and The Items Load on A Three-Factor Structure Using Principal Component Analysis. EKB Journal Management System, 89(2), 6336-6340. doi: 10.21608/ejhm.2022.269782
Catherine Awad; Nadia Fayaz; Mohamed Kaddah; Fathy Mostafa; Mohamed Abdelmegeed. "The Arabic Patient-Rated Elbow Evaluation Questionnaire Has No Floor or Ceiling Effect, and The Items Load on A Three-Factor Structure Using Principal Component Analysis". EKB Journal Management System, 89, 2, 2022, 6336-6340. doi: 10.21608/ejhm.2022.269782
Awad, C., Fayaz, N., Kaddah, M., Mostafa, F., Abdelmegeed, M. (2022). 'The Arabic Patient-Rated Elbow Evaluation Questionnaire Has No Floor or Ceiling Effect, and The Items Load on A Three-Factor Structure Using Principal Component Analysis', EKB Journal Management System, 89(2), pp. 6336-6340. doi: 10.21608/ejhm.2022.269782
Awad, C., Fayaz, N., Kaddah, M., Mostafa, F., Abdelmegeed, M. The Arabic Patient-Rated Elbow Evaluation Questionnaire Has No Floor or Ceiling Effect, and The Items Load on A Three-Factor Structure Using Principal Component Analysis. EKB Journal Management System, 2022; 89(2): 6336-6340. doi: 10.21608/ejhm.2022.269782

The Arabic Patient-Rated Elbow Evaluation Questionnaire Has No Floor or Ceiling Effect, and The Items Load on A Three-Factor Structure Using Principal Component Analysis

The Egyptian Journal of Hospital Medicine
Article 44, Volume 89, Issue 2, October 2022, Page 6336-6340  XML PDF (600.06 K)
Document Type: Original Article
DOI: 10.21608/ejhm.2022.269782
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Authors
Catherine Awad; Nadia Fayaz; Mohamed Kaddah; Fathy Mostafa; Mohamed Abdelmegeed email
Orthopedic physical therapy department, Faculty of physical therapy, Cairo University
Abstract
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 cross-culturally 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 three-factor 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.
 
Keywords
factor analysis; principal component analysis; floor effect; ceiling effect
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