Encyclopedia of Public Health

2008 Edition
| Editors: Wilhelm Kirch

r Index

Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-5614-7_3028


The r index is the most appropriate metric for expressing an  effect size when the researcher is interested in describing the relationship between two continuous variables. It is simply the Pearson product‐moment correlation coefficient. Very often we do not have presented variances and covariances in primary research. If only the value of the \( t- \)
This is a preview of subscription content, log in to check access.

Copyright information

© Springer-Verlag 2008