David B. Wilson, PhD, George Mason University
Version date: 2023.11.27
Correlation a from 2-by-2 frequency table
Notes: This method computes a correlation from 2-by-2 frequency data. It assumes you have two groups or conditions and a binary dependent variable. The “Yes” and “No” are simply the two levels of the binary variable, such as yes/no, success/failure, passed/failed, lived/died, etc.
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