Sobel Test

The Sobel test is a test for mediation.


Description

The hypothesis is formulated such that the relationship between an independent and dependent variable is an indirect effect through a mediator variable.

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In these pictured terms, the Sobel test statistic is calculated as:

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The current practice is to instead use a bootstrapping method to estimate the variance of β2β3.


CategoryRicottone

Statistics/SobelTest (last edited 2025-04-03 21:56:14 by DominicRicottone)