Comportamiento de las correlaciones producto-momento y tetracórica-policórica en escalas ordinales : un estudio de simulación
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Comportamiento de las correlaciones producto-momento y tetracórica-policórica en escalas ordinales : un estudio de simulación

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Comportamiento de las correlaciones producto-momento y tetracórica-policórica en escalas ordinales : un estudio de simulación

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dc.contributor.author Martínez Abad, Fernando es
dc.contributor.author Rodríguez Conde, María José es
dc.date.accessioned 2018-01-23T13:46:35Z
dc.date.available 2018-01-23T13:46:35Z
dc.date.issued 2017 es
dc.identifier.uri http://hdl.handle.net/10550/64100
dc.description.abstract The statistical multivariate analysis of Likert response scales, given their widespread use, is a controversial issue in the scientific community, mainly from the specification of the problem of measurement. This work aims to study various conditions of these ordinal scales affect the calculation of the product-moment and tetrachoric-polychoric correlation coefficients. For this purpose, a simulation study was applied in which 90 databases with 10 items each were generated. In the estimation of the databases, the following variables were controlled: number of response categories, symmetrical or asymmetric distributions of data, sample size and level of relationship between items. Thus, 90 matrices (10x10) were obtained which included the difference between the product-moment and tetrachoric-polychoric correlations. The graphical and variance analysis show how the product-moment correlation coefficient significantly underestimates the relationship between variables mainly when the number of response categories of the ordinal scale is small and the relationship between the variables is large. On the other hand, the statistical estimation of both coefficients is very similar when the starting relationship between pairs of variables is small and/or when the number of response options of the variables is greater than 5. The study concludes by making a recommendation to the applied researcher on the most appropriate correlation coefficient depending on the type of data available. Finally, the results are discussed from the previous studies, which reach some similar conclusions. es
dc.source Martínez Abad, Fernando ; Rodríguez Conde, María José. Comportamiento de las correlaciones producto-momento y tetracórica-policórica en escalas ordinales : un estudio de simulación. En: Relieve: Revista ELectrónica de Investigación y EValuación Educativa, 23 2 2017: 3- es
dc.title Comportamiento de las correlaciones producto-momento y tetracórica-policórica en escalas ordinales : un estudio de simulación es
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::PEDAGOGÍA es
dc.identifier.doi 10.7203/relieve.23.2.9476 es

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