From the glossary in Cohen (2003) p 678
"Semipartial correlation coefficients. Also called part correlations,
the unique correlation of a variable with Y: the square root of its
unique contribution to R**2."
Cohen, Jacob, et al (2003) Applied multiple regression/correlation
analysis for the behavioral sciences, third edition. Lawrence Erlbaum
Associates, Mahwah, NJ.
ISBN 0-8058-2223-2
LoC HA31.3 .A67.2003
Cohen, et al is an excellent reference on correlation and regression.
Another way to express it is the square root of the change in R**2 on
the last step of a hierarchical (i.e., stepped) set of regression equations.
Art
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Social Research Consultants
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sonia garcia wrote:
>Hi all,
>Could someone please explain what park correlations are? I have been asked to test the significance between park correlations and normal correlations and I am feeling a little bit too lost....
>
>Thanks in advance,
>Sonia.
>
>
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