Item Response Theory Observed-Score Kernel Equating.

@article{Andersson2017ItemRT,
  title={Item Response Theory Observed-Score Kernel Equating.},
  author={Bj{\"o}rn Andersson and Marie Wiberg},
  journal={Psychometrika},
  year={2017},
  volume={82 1},
  pages={
          48-66
        }
}
Item response theory (IRT) observed-score kernel equating is introduced for the non-equivalent groups with anchor test equating design using either chain equating or post-stratification equating. The equating function is treated in a multivariate setting and the asymptotic covariance matrices of IRT observed-score kernel equating functions are derived. Equating is conducted using the two-parameter and three-parameter logistic models with simulated data and data from a standardized achievement… CONTINUE READING

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