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A psychometric evaluation of the four-item version of the Control Attitudes Scale for patients with cardiac disease and their partners
Linköping University, Department of Medical and Health Sciences, Division of Nursing Science. Linköping University, Faculty of Health Sciences. Linnaeus University, Kalmar, Sweden .
Linköping University, Department of Medical and Health Sciences, Division of Nursing Science. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Thoracic and Vascular Surgery.
Linköping University, Department of Medical and Health Sciences, Division of Nursing Science. Linköping University, Faculty of Health Sciences.
University Kentucky, Lexington, KY, USA.
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2015 (English)In: European Journal of Cardiovascular Nursing, ISSN 1474-5151, E-ISSN 1873-1953, Vol. 14, no 4, 317-325 p.Article in journal (Refereed) Published
Abstract [en]

Background:The four-item Control Attitudes Scale (CAS) was developed to measure control perceived by patients with cardiac disease and their family members, but extensive psychometric evaluation has not been performed.Objective:The aim was to translate, culturally adapt and psychometrically evaluate the CAS in a Swedish sample of implantable cardioverter defibrillator (ICD) recipients, heart failure (HF) patients and their partners.Methods:A sample (n=391) of ICD recipients, HF patients and partners were used. Descriptive statistics, item-total and inter-item correlations, exploratory factor analysis, ordinal regression modelling and Cronbach's alpha were used to validate the CAS.Results:The findings from the factor analyses revealed that the CAS is a multidimensional scale including two factors, Control and Helplessness. The internal consistency was satisfactory for all scales (α=0.74-0.85), except the family version total scale (α=0.62). No differential item functioning was detected which implies that the CAS can be used to make invariant comparisons between groups of different age and sex.Conclusions:The psychometric properties, together with the simple and short format of the CAS, make it to a useful tool for measuring perceived control among patients with cardiac diseases and their family members. When using the CAS, subscale scores should be preferred.

Place, publisher, year, edition, pages
Sage Publications, 2015. Vol. 14, no 4, 317-325 p.
Keyword [en]
Family; heart disease; prevention and control; psychometrics
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-107731DOI: 10.1177/1474515114529685ISI: 000357949600006PubMedID: 24671774OAI: oai:DiVA.org:liu-107731DiVA: diva2:727084
Available from: 2014-06-19 Created: 2014-06-19 Last updated: 2017-12-05

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Årestedt, KristoferÅgren, SusannaFlemme, IngerStrömberg, Anna

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Årestedt, KristoferÅgren, SusannaFlemme, IngerStrömberg, Anna
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Division of Nursing ScienceFaculty of Health SciencesDepartment of Thoracic and Vascular SurgeryDepartment of Cardiology in Linköping
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European Journal of Cardiovascular Nursing
Medical and Health Sciences

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