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Direct linkvan den Heuvel-Panhuizen, Marja; Robitzsch, Alexander; Treffers, Adri; Koller, Olaf – Psychometrika, 2009
This article discusses large-scale assessment of change in student achievement and takes the study by Hickendorff, Heiser, Van Putten, and Verhelst (2009) as an example. This study compared the achievement of students in the Netherlands in 1997 and 2004 on written division problems. Based on this comparison, they claim that there is a performance…
Descriptors: Academic Achievement, Measures (Individuals), Program Effectiveness, Foreign Countries
Hickendorff, Marian; Heiser, Willem J.; van Putten, Cornelis M.; Verhelst, Norman D. – Psychometrika, 2009
In the Netherlands, national assessments at the end of primary school (Grade 6) show a decline of achievement on problems of complex or written arithmetic over the last two decades. The present study aims at contributing to an explanation of the large achievement decrease on complex division, by investigating the strategies students used in…
Descriptors: Foreign Countries, Grade 6, Arithmetic, National Competency Tests
Zhang, Jinming – Psychometrika, 2007
This paper extends the theory of conditional covariances to polytomous items. It has been proven that under some mild conditions, commonly assumed in the analysis of response data, the conditional covariance of two items, dichotomously or polytomously scored, given an appropriately chosen composite is positive if, and only if, the two items…
Descriptors: Grade 4, National Competency Tests, Test Items, Grade 8
