, Volume 37, Issue 1, pp 93–97 | Cite as

The occurrence of an increase in correlation by restriction of range

  • Joseph Levin


Given three variables,x, y, z, univariate selection onx, usually reduces the correlationr y z . However, in some cases, whenr x y orr x z assumes extreme values,r y z may increase. This reversal is explained by comparison to the effects of suppressor variables and predictors of predictability.


Public Policy Statistical Theory Suppressor Variable 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Psychometric Society 1972

Authors and Affiliations

  • Joseph Levin
    • 1
  1. 1.Tel-Aviv UniversityIsrael

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