Title: Correlation coefficients using Chi square results
Course: UGQuants (SSPS) > Section: Association for Nominal and Ordinal Variables

Correlation coefficients using Chi square results

Chi square is a useful test for nominal data as it allows us to determine if there is a relationship between our two variables. Fundamentally, however, it only provides us with basic information. Is there a relationship? Yes/No.  If we want to know about the strength of that relationship, however, there are other tests we may use. These are called correlation coefficients for nominal data.  The two most popular are Phi and Cramer’s V.  Both can be calculcated after chi square.