used more than 50 million times!
Calculator: Effect Size for Hierarchical Multiple Regression
Effect Size Calculator for Hierarchical Multiple Regression
This calculator will tell you the effect size for a hierarchical multiple regression study (Cohen's f2), given an R2 value for a set of independent variables A, and an R2 value for the sum of A and another set of independent variables B. The value returned by the calculator is the effect size attributable to the addition of set B to the model.
Please enter the necessary parameter values, and then click 'Calculate'.