Uno studio sui livelli di competenza in matematica: analisi delle differenze tra gli studenti italiani e campani

Programme for International Assessment (PISA) collected information on 15-year-old students in participating countries in 2000, 2003 and 2006. Performances differed widely between countries, and also between local areas and between schools in Italy. This study compares results for Campania and Italy using the Partial Credit Model. The PISA test shows good test-retest property, items show good fit to PCM and there are some significant differences between results for Campania and Italy.