Autor segons l'article: Ferrando P; Chico E
Departament: Psicologia
Autor/s de la URV: CHICO LIBRAN, ELISEO / Ferrando Piera, Pere Joan
Paraules clau: Test psicológicos Teoria de respostes als items Statistics Social desirability Scale Reliability Personality Item response theory Extraversion Classical test theory Ability
Resum: 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.
Àrees temàtiques: Statistics and probability Psychology, experimental Psychology (miscellaneous) Psicología Experimental and cognitive psychology Developmental and educational psychology Ciencias sociales Ciencias humanas Arts and humanities (miscellaneous)
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0211-2159
Adreça de correu electrònic de l'autor: perejoan.ferrando@urv.cat
Identificador de l'autor: 0000-0002-3133-5466
Pàgina final: 257
Data d'alta del registre: 2023-05-20
Volum de revista: 28
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.uv.es/psicologica/articulos2.07/8FERRANDO.pdf
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Psicologica. 28 (2): 237-257
Referència de l'ítem segons les normes APA: Ferrando P; Chico E (2007). The external validity of scores based on the twoparameter logistic model: Some comparisons between IRT and CTT. Psicologica, 28(2), 237-257
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2007
Pàgina inicial: 237
Tipus de publicació: Journal Publications
Repositori URV