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Knee Surgery, Sports Traumatology, Arthroscopy
Published in: Knee Surgery, Sports Traumatology, Arthroscopy 2/2021

01-02-2021 | KNEE

The English Knee Self-Efficacy Scale is a valid and reliable measure for knee-specific self-efficacy in individuals with a sport-related knee injury in the past 5 years

Authors: Allison M. Ezzat, Jackie L. Whittaker, Mariana Brussoni, Louise C. Mâsse, Carolyn A. Emery

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 2/2021

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Abstract

Purpose

To translate and cross-culturally adapt the Swedish Knee Self-Efficacy Scale (K-SES) into English and evaluate the measurement properties in a sample of individuals with previous knee injury.

Methods

Translation, cross-cultural adaptation, and evaluation followed the Beaton multi-step process and COSMIN guidelines. Participants (n = 125) aged 16–60 years with a sport-related intra-articular tibiofemoral or patellofemoral injury within the last 5 years completed the K-SES, Knee Injury and Osteoarthritis Outcome Score, Anterior Cruciate Ligament-Return to Sport After Injury Scale, Tegner Activity Level Scale, and Multi-dimensional Health Locus of Control. Confirmatory factor analysis (CFA) tested a-priori two-factor structure and model fit. Cronbach-alpha, intra-class correlation coefficient (ICC), and absolute reliability (Bland–Altman plots) were calculated. Construct validity was assessed by eight pre-defined hypotheses. A sub-group of participants (n = 42) completed the K-SES twice to assess intra-rater reliability.

Results

The cross-cultural adaptation generated an English K-SES with face and content validity. The original two-factor structure was rejected based on CFA and a revised solution informed by Exploratory Factor analysis resulted in an adequate fit. All construct validity hypotheses were confirmed. The K-SES showed good internal consistency [Factor (F1: α = 0.96; F2: α = 0.73)], intra-rater reliability (ICC = 0.92), and no systematic bias between repeated measurements.

Conclusion

The English K-SES is a valid and reliable measure for knee-specific self-efficacy in individuals who have sustained a sport-related intra-articular knee injury in the previous 5 years.

Level of evidence

IV.
Appendix
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Metadata
Title
The English Knee Self-Efficacy Scale is a valid and reliable measure for knee-specific self-efficacy in individuals with a sport-related knee injury in the past 5 years
Authors
Allison M. Ezzat
Jackie L. Whittaker
Mariana Brussoni
Louise C. Mâsse
Carolyn A. Emery
Publication date
01-02-2021
Publisher
Springer Berlin Heidelberg
Published in
Knee Surgery, Sports Traumatology, Arthroscopy / Issue 2/2021
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI
https://doi.org/10.1007/s00167-020-05974-x

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