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dc.contributor.authorLerdal, A.-
dc.contributor.authorJohansson, S.-
dc.contributor.authorKottorp, Anders-
dc.contributor.authorvon Koch, L.-
dc.date.accessioned2018-07-27T13:10:51Z-
dc.date.available2018-07-27T13:10:51Z-
dc.date.issued2010-06-
dc.identifier.issn1352-4585de_CH
dc.identifier.issn1477-0970de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/8725-
dc.description.abstractBackground: Rigorous testing of the original Fatigue Severity Scale (FSS-9) with modern psychometric methods is warranted. Objective: To determine the psychometric properties of the FSS-9 in multiple sclerosis (MS): internal scale validity; person response validity; unidimensionality; uniform differential item functioning; temporal stability of response patterns; and ability to separate people into distinct groups of fatigue. Methods: Rasch analyses were conducted on data from a Norwegian and a Swedish MS cohort followed for two years. Results: Item estimations in the FSS-9 did not differ between sex or levels of education but between the cohorts with regard to disability, disease course and time for evaluation, however, items 1 and 2 demonstrated unacceptable high outfit mean-square values in both cohorts. In an FSS-7 item version, items 3 and 4 in the Norwegian and 4 in the Swedish cohort demonstrated unacceptable goodness of fit but high separation indexes. In the FSS-7, the first unidimensional factor explained 87.5% (Norwegian cohort) and 86.4% (Swedish cohort) of the total variation. Conclusions: In MS, the FSS-7 demonstrates better psychometric properties than the FSS-9; items 1 and 2 neither empirically nor conceptually fit with the other seven items.de_CH
dc.language.isoende_CH
dc.publisherSagede_CH
dc.relation.ispartofMultiple Sclerosis Journalde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectFatiguede_CH
dc.subjectMultiple Sclerosisde_CH
dc.subjectPsychometricsde_CH
dc.subjectSurvey and Questionnairede_CH
dc.subjectSeverity of Illness Indexde_CH
dc.subject.ddc616.8: Neurologie und Krankheiten des Nervensystemsde_CH
dc.titlePsychometric properties of the Fatigue Severity Scale : Rasch analyses of responses in a Norwegian and a Swedish MS cohortde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementGesundheitde_CH
zhaw.organisationalunitInstitut für Ergotherapie (IER)de_CH
dc.identifier.doi10.1177/1352458510370792de_CH
dc.identifier.pmid20558503de_CH
zhaw.funding.euNode_CH
zhaw.issue6de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end741de_CH
zhaw.pages.start733de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume16de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Lerdal, A., Johansson, S., Kottorp, A., & von Koch, L. (2010). Psychometric properties of the Fatigue Severity Scale : Rasch analyses of responses in a Norwegian and a Swedish MS cohort. Multiple Sclerosis Journal, 16(6), 733–741. https://doi.org/10.1177/1352458510370792
Lerdal, A. et al. (2010) ‘Psychometric properties of the Fatigue Severity Scale : Rasch analyses of responses in a Norwegian and a Swedish MS cohort’, Multiple Sclerosis Journal, 16(6), pp. 733–741. Available at: https://doi.org/10.1177/1352458510370792.
A. Lerdal, S. Johansson, A. Kottorp, and L. von Koch, “Psychometric properties of the Fatigue Severity Scale : Rasch analyses of responses in a Norwegian and a Swedish MS cohort,” Multiple Sclerosis Journal, vol. 16, no. 6, pp. 733–741, Jun. 2010, doi: 10.1177/1352458510370792.
LERDAL, A., S. JOHANSSON, Anders KOTTORP und L. VON KOCH, 2010. Psychometric properties of the Fatigue Severity Scale : Rasch analyses of responses in a Norwegian and a Swedish MS cohort. Multiple Sclerosis Journal. Juni 2010. Bd. 16, Nr. 6, S. 733–741. DOI 10.1177/1352458510370792
Lerdal, A., S. Johansson, Anders Kottorp, and L. von Koch. 2010. “Psychometric Properties of the Fatigue Severity Scale : Rasch Analyses of Responses in a Norwegian and a Swedish MS Cohort.” Multiple Sclerosis Journal 16 (6): 733–41. https://doi.org/10.1177/1352458510370792.
Lerdal, A., et al. “Psychometric Properties of the Fatigue Severity Scale : Rasch Analyses of Responses in a Norwegian and a Swedish MS Cohort.” Multiple Sclerosis Journal, vol. 16, no. 6, June 2010, pp. 733–41, https://doi.org/10.1177/1352458510370792.


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