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Cultural Adaptation, Validity, Reliability and Responsiveness of the Swedish Version of the Effective Musculoskeletal Consumer Scale (EC-17).

Bremander, Ann LU ; Wikström, Ingegerd LU ; Larsson, Ingrid; Bengtsson, Maria; Hagel, Sofia LU and Strömbeck, Britta LU (2012) In Musculoskeletal Care 10(1). p.43-50
Abstract
BACKGROUND: Endorsed by the Outcome MEasures in Rheumatoid Arthritis in Clinical Trials (OMERACT) group, The Effective Consumer Scale (EC-17) was developed in English for patients with musculoskeletal diseases to assess the skills and perceptions important for participating in and managing health care. The objective of this study was culturally to adapt the questionnaire into Swedish and to study its psychometric properties.



METHODS: After translation of the questionnaire into Swedish, two different groups of outpatients from two specialist rheumatology departments participated in the study. Face validity was assessed, together with internal consistency, test-retest and responsiveness of the questionnaire. Construct... (More)
BACKGROUND: Endorsed by the Outcome MEasures in Rheumatoid Arthritis in Clinical Trials (OMERACT) group, The Effective Consumer Scale (EC-17) was developed in English for patients with musculoskeletal diseases to assess the skills and perceptions important for participating in and managing health care. The objective of this study was culturally to adapt the questionnaire into Swedish and to study its psychometric properties.



METHODS: After translation of the questionnaire into Swedish, two different groups of outpatients from two specialist rheumatology departments participated in the study. Face validity was assessed, together with internal consistency, test-retest and responsiveness of the questionnaire. Construct validity was assessed using the Arthritis Self-Efficacy Scale (ASES), and responsiveness to a five day educational intervention was analysed using the standardized response mean (SRM).



RESULTS: Analyses were based on 124 patients with inflammatory rheumatic diseases, of whom 50 attended the intervention. Data quality met the requirements, with missing values <5%, and floor and ceiling effects <15%. Item total correlations were all >0.4, ranging from 0.49 to 0.88. Cronbach's alpha was 0.93 and 0.95 for the two groups. The test-retest correlation (ICC(2.1) ) was 0.94, and there was a significant improvement as a result of the intervention, with an SRM of 0.43. However, the questionnaire had a higher construct validity with the ASES subscale 'other symptoms' than hypothesized a priori (r(s) 0.75).



CONCLUSION: The Swedish version of the EC-17 met the required recommendations for face validity, internal consistency, test-retest reliability and responsiveness. Its construct validity needs to be further established, and the questionnaire needs further testing in different groups of patients and in different interventions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Musculoskeletal Care
volume
10
issue
1
pages
43 - 50
publisher
John Wiley & Sons
external identifiers
  • pmid:22302732
  • scopus:84857362252
ISSN
1557-0681
DOI
10.1002/msc.1006
language
English
LU publication?
yes
id
8705cf5c-929a-4e35-b382-707f6aea9802 (old id 2367328)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/22302732?dopt=Abstract
date added to LUP
2012-03-02 08:54:11
date last changed
2017-10-29 04:31:33
@article{8705cf5c-929a-4e35-b382-707f6aea9802,
  abstract     = {BACKGROUND: Endorsed by the Outcome MEasures in Rheumatoid Arthritis in Clinical Trials (OMERACT) group, The Effective Consumer Scale (EC-17) was developed in English for patients with musculoskeletal diseases to assess the skills and perceptions important for participating in and managing health care. The objective of this study was culturally to adapt the questionnaire into Swedish and to study its psychometric properties.<br/><br>
<br/><br>
METHODS: After translation of the questionnaire into Swedish, two different groups of outpatients from two specialist rheumatology departments participated in the study. Face validity was assessed, together with internal consistency, test-retest and responsiveness of the questionnaire. Construct validity was assessed using the Arthritis Self-Efficacy Scale (ASES), and responsiveness to a five day educational intervention was analysed using the standardized response mean (SRM).<br/><br>
<br/><br>
RESULTS: Analyses were based on 124 patients with inflammatory rheumatic diseases, of whom 50 attended the intervention. Data quality met the requirements, with missing values &lt;5%, and floor and ceiling effects &lt;15%. Item total correlations were all &gt;0.4, ranging from 0.49 to 0.88. Cronbach's alpha was 0.93 and 0.95 for the two groups. The test-retest correlation (ICC(2.1) ) was 0.94, and there was a significant improvement as a result of the intervention, with an SRM of 0.43. However, the questionnaire had a higher construct validity with the ASES subscale 'other symptoms' than hypothesized a priori (r(s) 0.75).<br/><br>
<br/><br>
CONCLUSION: The Swedish version of the EC-17 met the required recommendations for face validity, internal consistency, test-retest reliability and responsiveness. Its construct validity needs to be further established, and the questionnaire needs further testing in different groups of patients and in different interventions.},
  author       = {Bremander, Ann and Wikström, Ingegerd and Larsson, Ingrid and Bengtsson, Maria and Hagel, Sofia and Strömbeck, Britta},
  issn         = {1557-0681},
  language     = {eng},
  number       = {1},
  pages        = {43--50},
  publisher    = {John Wiley & Sons},
  series       = {Musculoskeletal Care},
  title        = {Cultural Adaptation, Validity, Reliability and Responsiveness of the Swedish Version of the Effective Musculoskeletal Consumer Scale (EC-17).},
  url          = {http://dx.doi.org/10.1002/msc.1006},
  volume       = {10},
  year         = {2012},
}