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Just how reliable is your internal reliability? An overview of Cronbach’s alpha (α)
PsyPag Quarterly, 2020Cronbach’s alpha (α) is the most widely used statistic denoting a scale’s internal reliability. Higher internal reliability is associated with greater confidence in the scale and the associated conclusions made from the results. Cronbach’s alpha is often
Olly Robertson, Michael Scott Evans
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Resampling Permutation Probability Values for Cronbach's Alpha
Perceptual and Motor Skills, 2009A permutation procedure to compute a resampling probability value and empirical quantile limits is provided for Cronbach's alpha measure of internal reliability. The underlying assumptions for the conventional use of alpha are discussed. The use of a permutation test for Cronbach's alpha is highlighted as a valuable tool when sample sizes are small ...
Andrew J, Prelog +2 more
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Simultaneous estimation of Cronbach’s alpha coefficients
Communications in Statistics - Theory and Methods, 2018The simultaneous estimation of Cronbachs alpha coefficients from q populations under the compound symmetry assumption is considered.
Supranee Lisawadi +3 more
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Testing hypotheses involving Cronbach's alpha using marginal models
British Journal of Mathematical and Statistical Psychology, 2013We discuss the statistical testing of three relevant hypotheses involving Cronbach's alpha: one where alpha equals a particular criterion; a second testing the equality of two alpha coefficients for independent samples; and a third testing the equality of two alpha coefficients for dependent samples.
Kuijpers, R.E. +2 more
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On the Bayesian estimation for Cronbach's alpha
Journal of Applied Statistics, 2016ABSTRACTThis article considers the problem of estimating Cronbach's alpha under a Bayeisan framework. Such Bayes estimator arrives through out approximating distribution of the maximum likelihood estimator for Cronbach's alpha by an F distribution. Then, employing a noninformative prior distribution, Bayes estimator under squared-error and LINEX loss ...
Amir T. Payandeh Najafabadi +1 more
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The reliability of assessments: The Bayesian Cronbach’s alpha
Medical Teacher, 2017Dear SirTo ensure the precision of assessment questions as a proxy for measuring student performance, reliability estimates of test scores are required.
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Neither Cronbach’s Alpha nor McDonald’s Omega: A Commentary on Sijtsma and Pfadt
Psychometrika, 2021Eunseong Cho
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Cronbach's alpha reliability: Interval estimation, hypothesis testing, and sample size planning
, 2015D. Bonett, T. A. Wright
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