השוואת שיטות

	ניתוח גורמים סדרתי חקרני	ניתוח גורמים גישוש (EFA)
תחום	פסיכומטריה	סטטיסטיקה
משפחה	Latent structure	Latent structure
שנת המקור	1978–1984	—
הוגה השיטה	Bengt Muthén	—
סוג	Latent variable / dimension reduction	Latent variable / dimension reduction
מקור מכונן	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.
כינויים	ordinal factor analysis, polychoric EFA, categorical EFA, EFA for ordinal data	common factor analysis, açımlayıcı faktör analizi, factor analysis
קשורות	5	4
תקציר	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.