Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| Alpha de Cronbach Ordinal× | Análise de Confiabilidade Ordinal× | |
|---|---|---|
| Área | Psicometria | Psicometria |
| Família | Latent structure | Latent structure |
| Ano de origem | 2007 | 2007 |
| Autor original≠ | Zumbo, Gadermann, and Zeisser | Bruno D. Zumbo and colleagues |
| Tipo≠ | Internal consistency reliability coefficient | Internal consistency reliability estimation |
| Fonte seminal≠ | Zumbo, B. D., Gadermann, A. M., & Zeisser, C. (2007). Ordinal versions of coefficients alpha and theta for Likert rating scales. Journal of Modern Applied Statistical Methods, 6(1), 21–29. DOI ↗ | Zumbo, B. D., Gadermann, A. M. & Zeisser, C. (2007). Ordinal versions of coefficients alpha and theta as measures of internal consistency for Likert rating scales. Journal of Modern Applied Statistical Methods, 6(1), 21–29. DOI ↗ |
| Outros nomes | alpha for ordinal data, polychoric alpha, ordinal reliability coefficient, alpha based on polychoric correlations | ordinal alpha, polychoric reliability, reliability for ordinal scales, ORA |
| Relacionados≠ | 3 | 5 |
| Resumo≠ | Ordinal Cronbach's alpha is a reliability coefficient computed from polychoric or polyserial correlations rather than Pearson correlations, making it appropriate for Likert-type and other ordinal item response data. It corrects the systematic downward bias that standard Cronbach's alpha produces when items are treated as continuous but are actually ordinal. | Ordinal reliability analysis estimates the internal consistency of scales whose items are measured on ordered-category (Likert-type) response formats. By basing computations on polychoric correlations rather than Pearson correlations, it corrects for the attenuation that standard Cronbach's alpha produces when responses are discrete and non-normal. |
| ScholarGateConjunto de dados ↗ |
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