providing accurate calculations for 11+ years!
Calculator: Sobel Test for the Significance of Mediation
Sobel Test Calculator for the Significance of Mediation
This calculator uses the Sobel test to tell you whether a mediator variable significantly carries the influence of an independent variable to a dependent variable; i.e., whether the indirect effect of the independent variable on the dependent variable through the mediator variable is significant. This calculator returns the Sobel test statistic, and both one-tailed and two-tailed probability values.
Please enter the necessary parameter values, and then click 'Calculate'.