Comparación de métodos estadísticos para la evaluación del funcionamiento diferencial de los ítems

  1. Rodríguez Gómez, Gregorio
  2. Gil Flores, Javier
  3. García Miranda, Eduardo
Revista de investigación educativa, RIE

ISSN: 0212-4068

Year of publication: 1998

Volume: 16

Issue: 1

Pages: 187-206

Type: Article

More publications in: Revista de investigación educativa, RIE


A comparative study over four methods used to detect the differential item functioning is the focus of this paper. These methods are: the delta method (frecuently used in the classic theory's context), the methods of proportion's differences and the chi square (both based on the contingency's table), and the contrast of the b parameters, obtained when stimating the caracteristic curve of the item. The data used has been accomplished from a test about text's comprehension administered to 519 Secondary Education's students, being sex the differencing variable of the groups. After the application of these different techniques, the results obtained are similar.