Autor según el artículo: Ferrando, Pere J; Chico, Eliseo
Departamento: Psicologia
Autor/es de la URV: CHICO LIBRAN, ELISEO / Ferrando Piera, Pere Joan
Palabras clave: Test psicológicos Teoria de respostes als items Statistics Social desirability Scale Reliability Personality Item response theory Extraversion Classical test theory Ability
Resumen: A theoretical advantage of item response theory (IRT) models is that trait estimates based on these models provide more test information than any other type of test score. It is still unclear, however, whether using IRT trait estimates improves external validity results in comparison with the results that can be obtained by using simple raw scores. This paper discusses some methodological results based on the 2-parameter logistic model (2PLM) and is concerned with three issues: first, how validity coefficients based on IRT trait estimates must be interpreted; second, how inferences about these coefficients can be made; and third, which differences in external validity can be expected if the 2PLM is correct for the data and IRT scores are used in place of raw scores. Four empirical examples in the personality domain provided further evidence for the results that can be expected in real research in which the model is, at best, a good approximation to the data. A general result of these examples was that validity coefficients based on IRT scores were similar to those based on raw scores.
Áreas temáticas: Statistics and probability Psychology, experimental Psychology (miscellaneous) Psicología Experimental and cognitive psychology Developmental and educational psychology Ciencias sociales Ciencias humanas Arts and humanities (miscellaneous)
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0211-2159
Direcció de correo del autor: perejoan.ferrando@urv.cat
Identificador del autor: 0000-0002-3133-5466
Página final: 257
Fecha de alta del registro: 2024-10-19
Volumen de revista: 28
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.uv.es/psicologica/articulos2.07/8FERRANDO.pdf
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Psicologica. 28 (2): 237-257
Referencia de l'ítem segons les normes APA: Ferrando, Pere J; Chico, Eliseo (2007). The external validity of scores based on the twoparameter logistic model: Some comparisons between IRT and CTT. Psicologica, 28(2), 237-257
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2007
Página inicial: 237
Tipo de publicación: Journal Publications