Purpose: To evaluate the measurement properties of a new version of the Swedish Knee Self-Efficacy Scale (K-SES) in samples of individuals with an anterior cruciate ligament (ACL) injury and after ACL reconstruction. A secondary aim was to translate the new version of K-SES into English in order to prepare for future complete cross-cultural adaptation.
Methods: The reliability, structural validity, internal consistency and construct validity of the new, 18-item version of the K-SES (K-SES) were assessed according to the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) checklist for evaluating methodological quality. The Swedish version of the K-SES was translated to English using recommended guidelines.
Results: The test-retest reliability for the K-SES subscale present and the K-SES subscale future showed an Interclass Correlation Coefficient (ICC) = 0.92. In addition, the K-SES had a Cronbach's α ranging from 0.93 to 0.96 for the K-SES subscale present and from 0.81 to 0.91 for the K-SES subscale future. No floor and ceiling effects were identified for the subscale present or the subscale future of the K-SES. A factor analysis produced 2 factors of importance; K-SESpresent and K-SESfuture. Seven predefined hypotheses were confirmed.
Conclusion: The K-SES has acceptable reliability and validity to assess knee self-efficacy in patients up to 18 months after ACL injury and reconstruction.
Level Of Evidence: IV.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8542523 | PMC |
http://dx.doi.org/10.1186/s40634-021-00414-2 | DOI Listing |
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