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The problem with Cronbach's alpha: Comment on Sijtsma and van der Ark (2015)
Barbaranelli, Claudio Lee, Christopher Vellone, Ercole Riegel, Barbara
Barbaranelli, Claudio
Lee, Christopher
Vellone, Ercole
Riegel, Barbara
Abstract
Knowledge of a scale’s dimensionality is an essential preliminary step to the application of any measure of reliability derived from classical test theory—an approach commonly used is nursing research. The focus of this article is on the applied aspects of reliability and dimensionality testing. Throughout the article, the Self-Care of Heart Failure Index is used to exemplify real-world data challenges of quantifying reliability and to provide insight into how to overcome such challenges.
Keywords
psychological measurement, psychometrics, questionnaires, reliability, reproducibility of results, Self-Care of Heart Failure Index
Date
2015
Type
Journal article
Journal
Nursing Research
Book
Volume
64
Issue
2
Page Range
140-145
Article Number
ACU Department
Faculty of Health Sciences
Mary MacKillop Institute for Health Research
Mary MacKillop Institute for Health Research
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Relation URI
Source URL
Event URL
Open Access Status
License
File Access
Controlled