Coefficients of Association Analogous to Pearson's r for nonparametric Statistics
Open Access
- 1 October 1980
- journal article
- Published by SAGE Publications in Educational and Psychological Measurement
- Vol. 40 (3) , 679-685
- https://doi.org/10.1177/001316448004000311
Abstract
The rz and rp coefficients of association are discussed. Both coefficients, like Pearson's r, are based on a z/zmax framework. They yield coefficients directly comparable for all levels of measurement being based on an obtained/maximum departure from independence in z units interpretation. The r z coefficient can be applied to any nonparametric test statistic in which a normal approximation equation is appropriate. The rp coefficient is applicable to any nonparametric test statistic in which exact probabilities are known.Keywords
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