What is another word for phi coefficient?
Pronunciation: [fˈa͡ɪ kˌə͡ʊɪfˈɪʃənt] (IPA) 
The phi coefficient is a statistical measure used to determine the association between two binary variables. However, there are different terms used around the world that mean the same thing as phi coefficient. In some instances, it is called the Yule's Y, Yule's Q, or even Cramer's phi. This variability in terminology can at times create confusion, but the various names illustrate that the phi coefficient has been used for a long time in the field of statistics. While the name may differ, the principle remains the same - that the phi coefficient is valuable as an indicator of the correlation between two variables. Its wide use makes it a key statistical tool.
