Compara mètodes

	Anàlisi Factorial Exploratòria Ordinal	Anàlisi Factorial Exploratòria (EFA)
Camp	Psicometria	Estadística
Família	Latent structure	Latent structure
Any d'origen	1978–1984	—
Autor original	Bengt Muthén	—
Tipus	Latent variable / dimension reduction	Latent variable / dimension reduction
Font seminal	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.	Fabrigar, L. R., Wegener, D. T., MacCallum, R. C. & Strahan, E. J. (1999). Evaluating the use of exploratory factor analysis in psychological research. Psychological Methods, 4(3), 272–299.
Àlies	ordinal factor analysis, polychoric EFA, categorical EFA, EFA for ordinal data	common factor analysis, açımlayıcı faktör analizi, factor analysis
Relacionats	5	4
Resum	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.	Exploratory factor analysis reduces a large set of observed variables into a smaller number of latent common factors. It is widely used in scale development and psychometrics to uncover the dimensional structure that underlies a set of correlated items, without specifying that structure in advance.