• Report  

      Effects of Misbehaving Common Items on Aggregate Scores and an Application of the Mantel-Haenszel Statistic in Test Equating. 

      Michaelides, Michalis P.; National Center for Research on Evaluation, Standards, and, Student Testing (National Center for Research on Evaluation, Standards, and Student Testing (CRESST), 2006)
      Consistent behavior is a desirable characteristic that common items are expected to have when administered to different groups. Findings from the literature have established that items do not always behave in consistent ...
    • Report  

      Sampling of Common Items: An Unrecognized Source of Error in Test Equating. 

      Michaelides, Michalis P.; Haertel, Edward H.; California Univ, Los Angeles Center for the Study, of Evaluation (Center for Research on Evaluation Standards and Student Testing CRESST, 2004)
      There is variability in the estimation of an equating transformation because common-item parameters are obtained from responses of samples of examinees. The most commonly used standard error of equating quantifies this ...
    • Report  

      Sensitivity of IRT Equating to the Behavior of Test Equating Items 

      Michaelides, Michalis P. (2003)
      The delta-plot method is used to identify which common items in a common item nonequivalent groups design for test equating show large changes in their p-values across administrations. Outliers in that plot denote differential ...