Extract Paired Correlation

A function for estimating the correlation from a paired samples t-test. Useful for when using tsum_TOST and the correlation is not available.

extract_r_paired(m1, sd1, m2, sd2 = NULL, n, tstat = NULL, pvalue = NULL)

Arguments

m1

mean of group 1.

sd1

standard deviation of group 1.

m2

mean of group 2.

sd2

standard deviation of group 2.

n

Sample size (number of pairs)

tstat

The t-value from a paired samples t-test

pvalue

The two-tailed p-value from a paired samples t-test

Value

An estimate of the correlation.

References

Lajeunesse, M. J. (2011). On the meta‐analysis of response ratios for studies with correlated and multi‐group designs. Ecology, 92(11), 2049-2055