Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| Konfirmační faktorová analýza (CFA)× | Konfirmační faktorová analýza (CFA)× | Cronbachovo alfa (analýza spolehlivosti)× | |
|---|---|---|---|
| Obor≠ | Statistika | Psychometrika | Statistika |
| Rodina | Latent structure | Latent structure | Latent structure |
| Rok vzniku≠ | 1969 | 1969 | 1951 |
| Tvůrce≠ | Karl Jöreskog | Karl Gustav Jöreskog | Lee J. Cronbach |
| Typ≠ | Confirmatory latent variable model | Hypothesis-testing latent variable model | Reliability / internal consistency coefficient |
| Původní zdroj≠ | Brown, T. A. (2015). Confirmatory Factor Analysis for Applied Research (2nd ed.). The Guilford Press. ISBN: 978-1462515363 | Jöreskog, K. G. (1969). A general approach to confirmatory maximum likelihood factor analysis. Psychometrika, 34(2), 183–202. DOI ↗ | Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297–334. DOI ↗ |
| Další názvy≠ | Doğrulayıcı Faktör Analizi (CFA), confirmatory factor analysis, measurement model | CFA, confirmatory FA, measurement model, restricted factor analysis | coefficient alpha, alpha reliability, internal consistency reliability, Güvenilirlik Analizi (Cronbach Alpha) |
| Příbuzné | 4 | 4 | 4 |
| Shrnutí≠ | Confirmatory factor analysis tests whether a researcher-specified factor structure fits the observed data. Formalised by Karl Jöreskog in 1969, it is the measurement-model step within structural equation modelling and is the standard tool for validating the factorial structure of scales and questionnaires before comparing groups or estimating latent relationships. | Confirmatory factor analysis tests a researcher-specified factor structure against observed data. Unlike exploratory approaches, the researcher decides in advance which indicators load on which latent factor, and the model is evaluated by how closely the implied covariance matrix reproduces the sample covariance matrix. CFA is central to scale validation, construct validity assessment, and measurement invariance testing. | Cronbach's alpha is a coefficient of internal consistency that quantifies the degree to which a set of items on a scale measures the same underlying construct. Introduced by Lee J. Cronbach in 1951, it remains the most widely reported reliability index in social-science, health, and educational research. |
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