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Item Differential In Computer Based And Paper Based Versions Of A High Stakes Tertiary Entrance Test: Diagrams And The Problem Of Annotation, Brad Jackel
Dr Brad Jackel
This paper presents the results from a tertiary entrance test that was delivered to two groups of candidates, one as a paper based test and the other as a computer based test. Item level differential reveals a pattern that appears related to item type: questions based on diagrammatic stimulus show a pattern of increased difficulty when delivered on computer. Differential in performance was not present in other sections of the test and it would appear unlikely to be explained by demographic differences between the groups. It is suggested this differential is due to the inability of the candidates to freely …
Cartoons And Linguistic Context, Brad Jackel
Cartoons And Linguistic Context, Brad Jackel
Dr Brad Jackel
This paper presents the results of a trial conducted during the development of The Graduate Australian Medical School Admission Test (GAMSAT) 2006, where two versions of a cartoon unit were trialled; in both cases the cartoon and the question itself were identical. The only difference was in the way the cartoon was introduced within the test. Psychometrically, across the 650 candidates involved in the trial, one version ‘worked’ very well, the other not at all.