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Assessing Model-Data Fit For Compensatory And Non-Compensatory Multidimensional Item Response Models Using Vuong And Clarke Statistics, Leanne Freeman

Theses and Dissertations

The primary importance of the study was that no statistics were able to provide probabilistic statements about model-data fit between the non-nested compensatory and non-compensatory MIRT models. Secondarily, the Vuong and Clarke statistics have been utilized prolifically in economics and political science and have great potential to contribute to educational measurement. Finally, application of the Vuong and Clarke statistics will not only reduce the damage of misspecified MIRT models but will also promote the use of less known models, in this case, the non-compensatory models.

The purpose of the study was to investigate whether the Vuong and Clarke statistics can …

Making Test Batteries Adaptive By Using Multistage Testing Techniques, Wen Zeng

Theses and Dissertations

The objective of this dissertation research is to investigate the possibility to improve both reliability and validity for test batteries under the framework of multi-stage testing (MST). Two test battery designs that incorporate MST components were proposed and evaluated, one is a multistage test battery (MSTB) design and the other is a hybrid multistage test battery (MSTBH) design. The MSTB design consists of three tests: The first test used the AMI (approximate maximum information) method as the routing strategy; and as for the second and third, the “On-the-Fly” strategy (OMST) was employed. The MSTBH design also consists of three tests; …