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On the Use, the Misuse, and the Very Limited Usefulness of Cronbach’s Alpha
This discussion paper argues that both the use of Cronbach’s alpha as a reliability estimate and as a measure of internal consistency suffer from major problems. First, alpha always has a value, which cannot be equal to the test score’s reliability given the interitem covariance matrix and the usual...
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
Springer-Verlag
2008
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| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2792363/ https://ncbi.nlm.nih.gov/pubmed/20037639 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1007/s11336-008-9101-0 |
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