Definition
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 \( t- \)test associated with r index is given, formula for its calculation is:
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© 2008 Springer-Verlag
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(2008). r Index . In: Kirch, W. (eds) Encyclopedia of Public Health. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-5614-7_3028
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DOI: https://doi.org/10.1007/978-1-4020-5614-7_3028
Publisher Name: Springer, Dordrecht
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Online ISBN: 978-1-4020-5614-7
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