Making sense of Cronbach's alpha. [PDF]
Int J Med Educ, 2011 Medical educators attempt to create reliable and valid tests and questionnaires in order to enhance the accuracy of their assessment and evaluations. Validity and reliability are two fundamental elements in the evaluation of a measurement instrument.
Tavakol M, Dennick R.
europepmc +6 more sources
Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements. [PDF]
Front Psychol, 2016 The Cronbach's alpha is the most widely used method for estimating internal consistency reliability. This procedure has proved very resistant to the passage of time, even if its limitations are well documented and although there are better options as ...
Trizano-Hermosilla I, Alvarado JM.
europepmc +4 more sources
Cronbach’s Alpha and Semantic Overlap Between Items: A Proposed Correction and Tests of Significance [PDF]
Frontiers in Psychology, 2022 The purpose of the present study was to address the shortcomings of Cronbach’s alpha concerning the semantic overlap between items. Using an example from a motivational measure, the correction of Cronbach’s alpha was applied by partialing out the effects
Ghadah S. Alkhadim
doaj +3 more sources
Cronbach’s alpha in mathematics education research: Its appropriateness, overuse, and alternatives in estimating scale reliability [PDF]
Frontiers in Psychology, 2022 Critiques of coefficient alpha as an estimate of scale reliability are widespread in the literature. However, the continuous overuse of this statistic in mathematics education research suggests a disconnection between theory and practice.
Yusuf F. Zakariya
doaj +3 more sources
Robust estimation of Cronbach's alpha [PDF]
Journal of Multivariate Analysis, 2005 Cronbach’s alpha is a popular method to measure reliability, e.g. in quantifying the reliability of a score to summarize the information of several items in questionnaires. The alpha coefficient is known to be non-robust. We study the behavior of this coefficient in different settings to identify situations, which can easily occur in practice, but ...
Andreas Christmann, Stefan Van Aelst
semanticscholar +7 more sources
Good practices in normal childbirth: reliability analysis of an instrument by Cronbach’s Alpha [PDF]
Revista Latino-Americana de Enfermagem, 2018 Objectives: to analyze the internal consistency of the evaluation instrument of the adherence to the good practices of childbirth and birth care in the professionals, through Cronbach’s Alpha Coefficient for each of the dimensions and for the total ...
Leila Bernarda Donato Gottems +3 more
doaj +3 more sources
Reliability generalization meta-analysis of Cronbach’s alpha of the oral impacts on daily performance (OIDP) questionnaire [PDF]
BMC Oral HealthObjective To evaluate the pooled estimates of Cronbach’s alpha of the Oral Impacts on Daily Performance (OIDP) questionnaire and explore the moderators that could have influenced the overall estimate.
Kalyana Chakravarthy Pentapati +3 more
doaj +3 more sources
Statistics notes: Cronbach's alpha: Table 1 [PDF]
BMJ, 1997 J M. Bland, David Altman
semanticscholar +4 more sources
KR20 and KR21 for Some Nondichotomous Data (It's Not Just Cronbach's Alpha). [PDF]
Educ Psychol Meas, 2021 This article presents some equivalent forms of the common Kuder–Richardson Formula 21 and 20 estimators for nondichotomous data belonging to certain other exponential families, such as Poisson count data, exponential data, or geometric counts of trials ...
Foster RC.
europepmc +2 more sources
Part II: On the Use, the Misuse, and the Very Limited Usefulness of Cronbach's Alpha: Discussing Lower Bounds and Correlated Errors. [PDF]
Psychometrika, 2021 Prior to discussing and challenging two criticisms on coefficient α\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek ...
Sijtsma K, Pfadt JM.
europepmc +2 more sources