Very geeky stuff this. Sobel’s test is a parametric null hypothesis test of the significance of a mediation effect, i.e. that a third variable may be contributing to, i.e. mediating, the relationship between a first and second variable. If this is gobbledygook either, don’t worry, or, go and read up the entry about mediation!
Details #
As Sobel’s test is based on a model assuming population distributions of all three variables are Gaussian, it is much better, if you have raw data, to test mediation using bootstrapping to get confidence intervals.
Try also #
Bootstrapping
Confidence intervals
Gaussian (“Normal”) distributions
Mediation
Null hypothesis
Null hypothesis significance testing (NHST) paradigm
Chapters #
Not mentioned in the OMbook!
Online resources #
None currently.
Dates #
First created 5.x.24.
