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Robustness Of Two Formulas To Correct Pearson Correlation For Restriction Of Range, Minh Tran
Robustness Of Two Formulas To Correct Pearson Correlation For Restriction Of Range, Minh Tran
Educational Policy Studies Dissertations
ABSTRACT
ROBUSTNESS OF TWO FORMULAS
TO CORRECT PEARSON CORRELATION FOR
RESTRICTION OF RANGE
by
Dung Minh Tran
Many research studies involving Pearson correlations are conducted in settings where one of the two variables has a restricted range in the sample. For example, this situation occurs when tests are used for selecting candidates for employment or university admission. Often after selection, there is interest in correlating the selection variable, which has a restricted range, to a criterion variable. The focus of this research was to compare Alexander, Alliger, and Hanges’s (1984) formula to Thorndike’s (1947) formula and population values using Monte …