Document Type

Technical Report

Date of this Version

7-7-2013

Publication Source

Research in Nursing & Health

Volume

36

Issue

5

Start Page

500

Last Page

511

DOI

10.1002/nur.21554

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.

Copyright/Permission Statement

This is the peer reviewed version of the following article: [Vellone, E. et al. (2013). Psychometric Testing of the Self-Care of Heart Failure Index Version 6.2, Research in Nursing & Health 36, no. 5: p. 500-511], which has been published in final form at http://dx.doi.org/10.1002/nur.21554. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

Keywords

psychometric testing, instrument validity and reliability, heart failure, self-care

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Date Posted:09 November 2018

This document has been peer reviewed.