Free Sobel Test Calculator for the Significance of Mediation

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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 supply the necessary parameter values, and then click 'Calculate'.

A:	The regression coefficient for the relationship between the independent variable and the mediator.
B:	The regression coefficient for the relationship between the mediator and the dependent variable.
SE_A:	The standard error of the relationship between the independent variable and the mediator.
SE_B:	The standard error of the relationship between the mediator variable and the dependent variable.

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