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On kristof's test for a linear relation between true scores of two measures

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Abstract

The hypothesis that two variables have a perfect disattenuated correlation and hence measure the same trait, except for errors of measurement, is discussed. Equivalently, the underlying variables, the true scores, are related linearly. We show that several previously proposed ad hoc tests are in fact likelihood ratio tests. The cases when the linear relation is specified and when it is unspecified are both discussed.

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Reference Note

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Authors and Affiliations

  1. Bell Laboratories, 07733, Holmdel, New Jersey

    J. D. Healy

Authors
  1. J. D. Healy
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Additional information

This work was done while the author was at Purdue University Under Air Force Grant AFOSR-72-2350B.

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Healy, J.D. On kristof's test for a linear relation between true scores of two measures. Psychometrika 44, 235–238 (1979). https://doi.org/10.1007/BF02293974

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  • DOI: https://doi.org/10.1007/BF02293974

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