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Published on: September 11, 2021
Development and psychometric properties of a joint protection self-efficacy scale
Karin Niedermann1, Adrian Forster, Adrian Ciurea
1Department of Rheumatology and Institute of Physical Medicine, University Hospital Zurich, Switzerland. karin.niedermann@usz.ch
Scandinavian Journal of Occupational Therapy
|May 11, 2010
Summary
A new 10-item scale, the Joint Protection Self-Efficacy Scale (JP-SES), effectively measures self-efficacy in rheumatoid arthritis (RA) patients. This tool can enhance joint protection education strategies for improved patient outcomes.
Area of Science:
- Rheumatology
- Health Psychology
- Rehabilitation Science
Background:
- Self-efficacy is a key driver of behavior change.
- Effective joint protection (JP) education requires addressing self-efficacy perceptions.
- Developing a reliable measure for JP self-efficacy in rheumatoid arthritis (RA) is crucial.
Purpose of the Study:
- To develop and validate a scale measuring joint protection self-efficacy (JP-SES) in individuals with rheumatoid arthritis (RA).
Main Methods:
- Instrument development involved item generation, construct validity, and reliability testing.
- Rasch analysis was employed for construct validity assessment and scale refinement.
- The revised JP-SES underwent further testing for validity, test-retest reliability, and internal consistency.
Main Results:
- An initial 46 items were reduced to a 10-item JP-SES through Rasch analysis and validation.
- The final 10-item JP-SES demonstrated good overall fit values.
- The scale exhibited high internal consistency (α = 0.92) and good test-retest reliability (r(s) = 0.79; p < 0.001).
Conclusions:
- The JP-SES is a valid and reliable instrument for assessing self-efficacy in applying JP methods among RA patients.
- This scale can facilitate the integration of efficacy-enhancing strategies into JP education programs.
- The JP-SES provides a valuable tool for clinicians and researchers focused on improving RA management.
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