Syntax for Biserial Correlation Coefficient, NOT Point-Biserial in SPSS or R?

02 June 2016 1 3K Report

Are the assumptions for biserial correlation same as those in point-biserial except that one difference regarding the underlying continuous nature of dichotomous variable?

I need a syntax for biserial correlation or other way to compute it in SPSS or R. Or syntax for it's transformation from point-biserial correlation!

Bruce Weaver

The r_bis macro on the page linked below may be useful. I have never used it, so would recommend that you check it against textbook examples if you can find any that provide the raw data.

http://www.ottersbek.de/software/index.html

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