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| The current practice is to instead use a bootstrapping method to estimate the variance of ''β,,2,,*β,,3,''. | The current practice is to instead use a bootstrapping method to estimate the variance of ''β,,2,,β,,3,,''. |
Sobel Test
The Sobel test is a test for mediation.
Contents
Description
The hypothesis is formulated such that the relationship between an independent and dependent variable is an indirect effect through a mediator variable.
In these pictured terms, the Sobel test statistic is calculated as:
The current practice is to instead use a bootstrapping method to estimate the variance of β2β3.