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Effect size
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==== Probability of superiority ==== {{Main|Probability of superiority}} To more easily describe the meaning of an effect size to people outside statistics, the common language effect size, as the name implies, was designed to communicate it in plain English. It is used to describe a difference between two groups and was proposed, as well as named, by Kenneth McGraw and S. P. Wong in 1992.<ref name="McGraw KO, Wong SP 1992 361β365">{{Cite journal |vauthors=McGraw KO, Wong SP | year = 1992 | title = A common language effect size statistic | journal = [[Psychological Bulletin]] | volume = 111 | issue = 2 | pages = 361β365 | doi= 10.1037/0033-2909.111.2.361}}</ref> They used the following example (about heights of men and women): "in any random pairing of young adult males and females, the probability of the male being taller than the female is .92, or in simpler terms yet, in 92 out of 100 blind dates among young adults, the male will be taller than the female",<ref name="McGraw KO, Wong SP 1992 361β365"/> when describing the population value of the common language effect size.
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