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Melk
Lapis Lazuli | Level 10

What is the best way to measure correlation between 2 dichotmous/categorical variables? I have been using tetrachoric/polychoric, but I wonder if phi might be better. This is being used for collinearity between independent variables and association between multiple outcome variables.

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Ksharp
Super User

If they are all category variables then correlation is called association.

Check contingency table analysis

PROC FREQ + chisq + cmh

PROC CATMOD

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