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Olsen, Rolf Vegar – Scandinavian Journal of Educational Research, 2004
In the Programme for International Student Assessment (PISA) the items are organised in small clusters relating to the same stimulus material (called 'units'). Homogeneity analysis (HA) is used to develop a detailed description of the relationship between all the items in one unit, using the categorical information available in the PISA data. The…
Descriptors: Thinking Skills, Knowledge Level, Student Evaluation, Foreign Countries