Maintaining invariant scales in state, national and international level assessments. [ 2004 - 2006 ]

Research Grant

[Cite as]

Researchers Prof D AndrichA/Prof G Luo

Brief description Large scale assessments involve comparisons between countries, states within a country, and within these over time. For many reasons, identical items cannot be administered to every student. Nevertheless, the items must operate invariantly across groups. The Rasch models, which have invariance as an intrinsic property, are powerful in checking for such invariance. This project brings the basic research of the Chief Investigators to the industry partners to study, apply and document ways in which violations of Rasch models and different data collection formats are reflected as changes of scale, and how these might be controlled both statistically and empirically.

Funding Amount $338,446

Funding Scheme Linkage Projects

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