Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements

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 omega coefficient or the different versions...

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Detalles Bibliográficos
Autores: Alvarado Izquierdo, Jesús María, Trizano Hermosilla, Italo
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/24528
Acceso en línea:https://hdl.handle.net/20.500.14352/24528
Access Level:acceso abierto
Palabra clave:159.9.072
Reliability
Alpha
Omega
Greatest lower bound
Asymmetrical measures
Psicometría
6105.05 Psicometría
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oai_identifier_str oai:docta.ucm.es:20.500.14352/24528
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spelling Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical MeasurementsAlvarado Izquierdo, Jesús MaríaTrizano Hermosilla, Italo159.9.072ReliabilityAlphaOmegaGreatest lower boundAsymmetrical measuresPsicometría6105.05 PsicometríaThe 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 omega coefficient or the different versions of glb, with obvious advantages especially for applied research in which the ítems differ in quality or have skewed distributions. In this paper, using Monte Carlo simulation, the performance of these reliability coefficients under a one-dimensional model is evaluated in terms of skewness and no tau-equivalence. The results show that omega coefficient is always better choice than alpha and in the presence of skew items is preferable to use omega and glb coefficients even in small samples.HolmesFinchUniversidad Complutense de Madrid20162016-05-2620162016-05-26journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/24528reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/245282026-06-02T12:44:21Z
dc.title.none.fl_str_mv Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
title Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
spellingShingle Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
Alvarado Izquierdo, Jesús María
159.9.072
Reliability
Alpha
Omega
Greatest lower bound
Asymmetrical measures
Psicometría
6105.05 Psicometría
title_short Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
title_full Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
title_fullStr Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
title_full_unstemmed Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
title_sort Best Alternatives to Cronbach's Alpha Reliability in Realistic Conditions: Congeneric and Asymmetrical Measurements
dc.creator.none.fl_str_mv Alvarado Izquierdo, Jesús María
Trizano Hermosilla, Italo
author Alvarado Izquierdo, Jesús María
author_facet Alvarado Izquierdo, Jesús María
Trizano Hermosilla, Italo
author_role author
author2 Trizano Hermosilla, Italo
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 159.9.072
Reliability
Alpha
Omega
Greatest lower bound
Asymmetrical measures
Psicometría
6105.05 Psicometría
topic 159.9.072
Reliability
Alpha
Omega
Greatest lower bound
Asymmetrical measures
Psicometría
6105.05 Psicometría
description 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 omega coefficient or the different versions of glb, with obvious advantages especially for applied research in which the ítems differ in quality or have skewed distributions. In this paper, using Monte Carlo simulation, the performance of these reliability coefficients under a one-dimensional model is evaluated in terms of skewness and no tau-equivalence. The results show that omega coefficient is always better choice than alpha and in the presence of skew items is preferable to use omega and glb coefficients even in small samples.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-05-26
2016
2016-05-26
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/24528
url https://hdl.handle.net/20.500.14352/24528
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv HolmesFinch
publisher.none.fl_str_mv HolmesFinch
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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