Description Usage Arguments Details Value Author(s) References See Also Examples
Converts Cliff's delta estimate to Cohen's d effect size as non-overlap between two standard normal distributions
1 | delta2cohd(d)
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d |
Cliff's delta estimate δ. |
Returns Cohen's d (or non-overlap, based on U1 in Table 2.2.1, Cohen, 1988, p.22).
d(δ) = 2 z_{\frac{-1}{δ-2}}, where z_p \equiv Φ^{-1}(p) = AUC^{-1}(p)
Jens Rogmann
Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Hillsdale, NJ, USA: Lawrence Erlbaum Associates.
cohd2delta
1 2 3 4 5 6 7 8 9 10 | ## Not run: > delta2cohd(-.10)
[1] -0.1194342
> delta2cohd(-.86)
[1] -0.7725292
> delta2cohd(.10)
[1] 0.1320236
> delta2cohd(.774)
[1] 1.797902
## End(Not run)
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