Browsing by Author "del Pino, Guido"

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    A local-influence-based diagnostic approach to a speeded item response theory model
    (WILEY, 2006) Goegebeur, Yuri; De Boeck, Paul; Molenberghs, Geert; del Pino, Guido
    An item response theory model for dealing with omitted responses in a test is proposed. In this model formulation, non-response does not only depend on an examinee's ability and on item difficulty, but additionally also on 'test speededness'. Using a local-influence-based diagnostic approach, the sensitivity of the model regarding assumptions concerning the drop-out mechanism is explored. The methodology proposed is applied to the Chilean Sistema de Medicion de la Calidad de la Educacion mathematics test case-study.