sobelTest_ord: Sobel test for the indirect effect - Two ordered mediator...

In ieTest: Indirect Effects Testing Methods in Mediation Analysis

Sobel test for the indirect effect - Two ordered mediator path

Description

This function takes the parameter estimates and covariances and performs the Sobel test for two ordered mediators.

Usage

sobelTest_ord(
  mu1,
  sig1,
  mu2,
  sig2,
  mu3,
  sig3,
  mu2b = 0L,
  sig2b = 0L,
  mu3b = 0L,
  sig3b = 0L,
  sig12 = 0L,
  sig12b = 0L,
  sig13 = 0L,
  sig13b = 0L,
  sig22b = 0L,
  sig23 = 0L,
  sig23b = 0L,
  sig2b3 = 0L,
  sig2b3b = 0L,
  sig33b = 0L,
  indL = 1L,
  mu1_0 = 0,
  mu2_0 = 0,
  mu3_0 = 0,
  mu2b_0 = 0,
  mu3b_0 = 0
)

Arguments

mu1	Value of the estimate of the independent variable on the first mediator.
sig1	Value of the variance of the estimate of the independent variable on the first mediator.
mu2	Value of the estimate of the first mediator on the second mediator.
sig2	Value of the variance of the estimate of the first mediator on the second mediator.
mu3	Value of the estimate of the second mediator on the response.
sig3	Value of the variance of the estimate of the second mediator on the response.
mu2b	Value of the estimate of the effect of the interaction of the independent and first mediator variable on the second mediator.
sig2b	Value of the variance of the estimate of the effect of the interaction of the independent and first mediator variable on the second mediator.
mu3b	Value of the estimate of the effect of the interaction of the independent and second mediator variable on the response.
sig3b	Value of the variance of the estimate of the effect of the interaction of the independent and second mediator variable on the response.
sig12	Value of the covariance between mu1 and mu2.
sig12b	Value of the covariance between mu1 and mu2b.
sig13	Value of the covariance between mu1 and mu3.
sig13b	Value of the covariance between mu1 and mu3b.
sig22b	Value of the covariance between mu2 and mu2b.
sig23	Value of the covariance between mu2 and mu3.
sig23b	Value of the covariance between mu2 and mu2b.
sig2b3	Value of the covariance between mu2b and mu3.
sig2b3b	Value of the covariance between mu2b and mu3b.
sig33b	Value of the covariance between mu3 and mu3b.
indL	Value indicating the value of the independent variable used for the interaction. Typically 1.
mu1_0	Null value for mu1.
mu2_0	Null value for mu2.
mu3_0	Null value for mu3.
mu2b_0	Null value for mu2b.
mu3b_0	Null value for mu3b.

Value

A p-value for the test for the indirect effect.

Examples

sobelTest_ord(1, .1, .25, .01, 0, 0, .15, .01, 0, 0)

ieTest documentation built on April 12, 2025, 1:49 a.m.