Abstract
Corrections of correlations for range restriction (i.e., selection) and unreliability are common in psychometric work. The current rule of thumb for determining the order in which to apply these corrections looks to the nature of the reliability estimate (i.e., restricted or unrestricted). While intuitive, this rule of thumb is untenable when the correction includes the variable upon which selection is made, as is generally the case. Using classical test theory, we show that it is the nature of the range restriction, not the nature of the available reliability coefficient, that determines the sequence for applying corrections for range restriction and unreliability.
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We would like to thank Malcolm James Ree for his encouragement and helpful comments as well as those of the editors, associate editor, and reviewers.
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Stauffer, J.M., Mendoza, J.L. The proper sequence for correcting correlation coefficients for range restriction and unreliability. Psychometrika 66, 63–68 (2001). https://doi.org/10.1007/BF02295732
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DOI: https://doi.org/10.1007/BF02295732