Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.usil.edu.pe/handle/123456789/1463
Título : ¿Matrices policóricas / tetracóricas o matrices Pearson?: Un estudio metodológico
Autor : Domínguez Lara, Sergio
Palabras clave : Análisis factorial
Matrices tetracóricas
Matrices policóricas
Validez
Factor analysis
Polychoric matrix
Tetrachoric matrx
Validity
Fecha de publicación : 2014
Editorial : Universidad San Ignacio de Loyola
Resumen : The use of product-moment correlation of Pearson is common in most studies in factor analysis in psychology, but it is known that this statistic is only applicable when the variables related are in interval scale and normally distributed, and when are used in ordinal data may to produce a distorted correlation matrix . Thus is a suitable option using polychoric/tetrachoric matrices in item-level factor analysis when the items are in level measurement nominal or ordinal. The aim of this study was to show the differences in the KMO, Bartlett`s Test and Determinant of the Matrix, percentage of variance explained and factor loadings in depression trait scale of Depression Inventory Trait - State and the Neuroticism dimension of the short form of the Eysenck Personality Questionnaire -Revised, regarding the use of matrices polychoric/tetrachoric matrices and Pearson. These instruments was analyzed with different extraction methods (Maximum Likelihood, Minimum Rank Factor Analysis, Unweighted Least Squares and Principal Components), keeping constant the rotation method Promin were analyzed. Were observed differences regarding sample adequacy measures, as well as with respect to the explained variance and the factor loadings, for solutions having as polychoric/tetrachoric matrix. So it can be concluded that the polychoric / tetrachoric matrix give better results than Pearson matrices when it comes to item-level factor analysis using different methods.
URI : http://repositorio.usil.edu.pe/handle/123456789/1463
Aparece en las colecciones: Artículos Académico-científicos

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