indirect_overall: Overall Indirect Effect

In multimedia: Multimodal Mediation Analysis

Overall Indirect Effect

Description

Direct Effects from Estimated Model

Usage

indirect_overall(model, exper = NULL, t1 = 1, t2 = 2)

Arguments

model	An object of class multimedia containing the estimated mediation and outcome models whose mediation and outcome predictions we want to compare.
exper	An object of class multimedia_data containing the mediation and outcome data from which the direct effects are to be estimated.
t1	The reference level of the treatment to be used when computing the indirect effect.
t2	The alternative level of the treatment to be used when computing the indirect effect.

Details

Estimate direct effects associated with a multimedia model. These estimates are formed using Equation (10) of our preprint.

Value

A data.frame summarizing the overall indirect effects associated with different settings of j in the equation above.

Examples

# example with null data
exper <- demo_joy() |>
    mediation_data("PHQ", "treatment", starts_with("ASV"))
fit <- multimedia(exper) |>
    estimate(exper)

indirect_overall(fit)

# example with another dataset
exper <- demo_spline(tau = c(2, 1)) |>
    mediation_data(starts_with("outcome"), "treatment", "mediator")
fit <- multimedia(exper) |>
    estimate(exper)
indirect_overall(fit)

multimedia documentation built on Sept. 30, 2024, 9:28 a.m.