Publication:
Misuses of KR-20 and cronbach's alpha reliability coefficients

dc.contributor.buuauthorTan, Şeref
dc.contributor.departmentEğitim Fakültesi
dc.contributor.departmentEğitim Bilimleri Bölümü
dc.contributor.scopusid55991750400
dc.date.accessioned2021-12-09T06:30:11Z
dc.date.available2021-12-09T06:30:11Z
dc.date.issued2009-04
dc.description.abstractIn this study, misuses of KR-20 and Cronbach's alpha reliability coefficients, used as internal consistency estimates, are illustrated. Two real data sets were used, dichotomously scored, KR-20, data set and polytomously scored, alpha, data set, to see variations in internal consistency coefficients when the unidimensionality assumption is violated. It is shown that a very high, but misleading internal consistency coefficient, KR-20 or alpha, can be obtained even when the unidimensionality assumption is violated. It is also shown that using the standard error of measurement as an indicator of reliability results in similar problems. Finally, misuses and the ways of avoiding those misuses of reporting internal consistency of a scale are suggested and briefly illustrated.
dc.identifier.citationTan, S. (2009). "Misuses of KR-20 and cronbach's alpha reliability coefficients". Eğitim ve Bilim, 34(152), 101-112.
dc.identifier.endpage112
dc.identifier.issn1300-1337
dc.identifier.issue152
dc.identifier.scopus2-s2.0-77956315719
dc.identifier.startpage101
dc.identifier.urihttp://hdl.handle.net/11452/23105
dc.identifier.volume34
dc.identifier.wos000265295100008
dc.indexed.scopusScopus
dc.indexed.trdizinTrDizin
dc.indexed.wosSSCI
dc.language.isoen
dc.publisherTürk Eğitim Derneği
dc.relation.journalEğitim ve Bilim
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAlpha reliability coefficient
dc.subjectCoefficient theta
dc.subjectKR-20
dc.subjectMisuses of internal consistency estimations
dc.subjectStratified alpha coefficient
dc.subjectEducation & educational research
dc.subject.scopusReliability Generalization; Point Estimation; Internal Consistency
dc.subject.wosEducation & educational research
dc.titleMisuses of KR-20 and cronbach's alpha reliability coefficients
dc.typeArticle
dc.wos.quartileQ4
dc.wos.quartileQ4
dspace.entity.typePublication
local.contributor.departmentEğitim Fakültesi/Eğitim Bilimleri Bölümü
local.indexed.atTrDizin
local.indexed.atWOS
local.indexed.atScopus

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