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Psychometric testing of the self-care of heart failure index version 6.2
Vellone, Ercole Riegel, Barbara Cocchieri, Antonello Barbaranelli, Claudio D'Agostino, Fabio Antonetti, Giovanni Glaser, Dale Alvaro, Rosaria
Vellone, Ercole
Riegel, Barbara
Cocchieri, Antonello
Barbaranelli, Claudio
D'Agostino, Fabio
Antonetti, Giovanni
Glaser, Dale
Alvaro, Rosaria
Abstract
The Self-Care of Heart Failure Index Version 6.2 ( SCHFI v.6.2 ) is widely used, but its psychometric profile is still questioned. In a sample of 659 heart failure patients from Italy, we performed confirmatory factor analysis ( CFA ) to test the original construct of the SCHFI v.6.2 scales ( Self-Care Maintenance, Self-Care Management, and Self-Care Confidence ), with limited success. We then used exploratory factor analysis to determine the presence of separate scale dimensions, followed by CFA in a separate sub-sample. Construct validity of individual scales showed excellent fit indices: CFI = .92, RMSEA = .05 for the Self-Care Maintenance Scale; CFI = .95, RMSEA = .07 for the Self-Care Management Scale; CFI = .99, RMSEA = .02 for the Self-Care Confidence scale. Contrasting groups validity, internal consistency, and test-retest reliability were supported as well. This evidence provides a new understanding of the structure of the SCHFI v.6.2 and supports its use in clinical practice and research.
Keywords
psychometric testing, instrument validity and reliability, heart failure, self-care
Date
2013
Type
Journal article
Journal
Research in Nursing and Health
Book
Volume
36
Issue
5
Page Range
500-511
Article Number
ACU Department
Mary MacKillop Institute for Health Research
Faculty of Health Sciences
Faculty of Health Sciences
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Relation URI
Source URL
Event URL
Open Access Status
License
File Access
Controlled