Jämför metoder
Granska de valda metoderna sida vid sida; rader som skiljer sig är markerade.
| Ordinal Exploratory Factor Analysis× | Konfirmatorisk faktoranalys (CFA)× | |
|---|---|---|
| Ämnesområde | Psykometri | Psykometri |
| Familj | Latent structure | Latent structure |
| Ursprungsår≠ | 1978–1984 | 1969 |
| Upphovsperson≠ | Bengt Muthén | Karl Gustav Jöreskog |
| Typ≠ | Latent variable / dimension reduction | Hypothesis-testing latent variable model |
| Ursprungskälla≠ | Flora, D. B. & Curran, P. J. (2004). An empirical evaluation of alternative methods of estimation for confirmatory factor analysis with ordinal data. Psychological Methods, 9(4), 466–491. DOI ↗ | Jöreskog, K. G. (1969). A general approach to confirmatory maximum likelihood factor analysis. Psychometrika, 34(2), 183–202. DOI ↗ |
| Alias | ordinal factor analysis, polychoric EFA, categorical EFA, EFA for ordinal data | CFA, confirmatory FA, measurement model, restricted factor analysis |
| Närliggande≠ | 5 | 4 |
| Sammanfattning≠ | Ordinal exploratory factor analysis discovers latent factors underlying a set of ordinal items — typically Likert scales — by computing polychoric correlations among the items and then applying a weighted least squares estimator. It avoids the distortions that arise when continuous EFA methods are naively applied to ordered categorical responses. | 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. |
| ScholarGateDatamängd ↗ |
|
|