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Direct linkWilderjans, Tom; Ceulemans, Eva; Van Mechelen, Iven – Psychometrika, 2008
Often problems result in the collection of coupled data, which consist of different N-way N-mode data blocks that have one or more modes in common. To reveal the structure underlying such data, an integrated modeling strategy, with a single set of parameters for the common mode(s), that is estimated based on the information in all data blocks, may…
Descriptors: Test Items, Simulation, Item Response Theory, Models
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
