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Mittelhaëuser, Marie-Anne; Béguin, Anton A.; Sijtsma, Klaas – Journal of Educational Measurement, 2015
The purpose of this study was to investigate whether simulated differential motivation between the stakes for operational tests and anchor items produces an invalid linking result if the Rasch model is used to link the operational tests. This was done for an external anchor design and a variation of a pretest design. The study also investigated…
Descriptors: Item Response Theory, Simulation, High Stakes Tests, Pretesting