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GROUP HOMOGENEITY, RANGE RESTRICTION, AND RANGE ENHANCEMENT EFFECTS ON CORRELATIONS
Author(s) -
ALEXANDER RALPH A.
Publication year - 1988
Publication title -
personnel psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.076
H-Index - 142
eISSN - 1744-6570
pISSN - 0031-5826
DOI - 10.1111/j.1744-6570.1988.tb00653.x
Subject(s) - psychology , homogeneity (statistics) , statistics , range (aeronautics) , affect (linguistics) , variance (accounting) , correlation , generalization , sample (material) , external validity , social psychology , econometrics , mathematics , chemistry , communication , chromatography , mathematical analysis , materials science , geometry , accounting , business , composite material
Recently, the issue of range enhancement effects on correlations has been raised as a potential criticism of correction for range restriction in validity generalization. While adding to or deleting from a sample can affect both the variance and correlation in the sample, increases or decreases in individual differences in an intact sample resulting from such factors as history, maturation, training, and experience will not necessarily affect correlations. If such changes in individual differences do occur in concurrent validation studies, the most likely result will be an underestimate of the unrestricted validity.