Now showing items 1-2 of 2

    • Combining scaling and classification 

      Bradshaw, Laine Percell (uga, 2011-05)
      The Scaling Individuals and Classifying Misconceptions (SICM) model is presented as a combination of an item response theory (IRT) model and a diagnostic classification model (DCM). Common modeling and testing procedures ...
    • The impact of missing data on the dichotomous mixture IRT models 

      Lee, Sunbok (uga, 2012-08)
      A mixture IRT model introduces latent classes into the model and is used when researchers want to model the heterogeneity of a population. It is designed to separate a population of individuals into qualitatively or ...