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Download full textFerrando, Pere J.; Chico, Eliseo – Psicologica: International Journal of Methodology and Experimental Psychology, 2007
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…
Descriptors: Validity, Raw Scores, Inferences, Item Response Theory
