• Model-based recursive partitioning of structural equation models 

    You, Dongjun (University of Missouri--Columbia, 2016)
    [ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The goal of this dissertation is to describe the algorithmic method of model-based recursive partitioning, and to compare different estimation techniques ...
  • Use of score-based tests in IRT Models 

    Wang, Ting (University of Missouri--Columbia, 2015)
    Measurement invariance is a fundamental assumption in item response theory models, where the relationship between a latent construct (ability) and observed item responses are of interest. Violation of this assumption would ...