Overview of quantitative measurement methods. Equivalence, invariance, and differential item functioning in health applications.

@article{Teresi2006OverviewOQ,
  title={Overview of quantitative measurement methods. Equivalence, invariance, and differential item functioning in health applications.},
  author={Jeanne A. Teresi},
  journal={Medical care},
  year={2006},
  volume={44 11 Suppl 3},
  pages={S39-49}
}
BACKGROUND Reviewed in this article are issues relating to the study of invariance and differential item functioning (DIF). The aim of factor analyses and DIF, in the context of invariance testing, is the examination of group differences in item response conditional on an estimate of disability. Discussed are parameters and statistics that are not invariant and cannot be compared validly in crosscultural studies with varying distributions of disability in contrast to those that can be compared… CONTINUE READING

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