Estimate whether two independent correlations differ
This function tests for statistical differences between two independent correlations using the formula provided on page 54 of Cohen & Cohen (1983). The function returns a z-score estimate.
cordif(rvalue1,rvalue2,n1,n2)
rvalue1 |
Correlation value from first sample. |
rvalue2 |
Correlation value from second sample. |
n1 |
The sample size of the first correlation. |
n2 |
The sample size of the second correlation. |
Produces a single value, the z-score for the differences between the correlations.
Paul Bliese paul.bliese@moore.sc.edu
Cohen, J. & Cohen, P. (1983). Applied multiple regression/correlation analysis for the behavioral sciences (2nd Ed.). Hillsdale, NJ: Lawrence Erlbaum Associates.
cordif(rvalue1=.51,rvalue2=.71,n1=123,n2=305)
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