summary.ivmediate: Summarizing Output from Mediation Analysis with Treatment...

Description Usage Arguments Author(s) References See Also Examples

Description

Function to report results from mediation analysis with treatment noncompliance. Reported categories are local average causal mediation effects, local average natural direct effects and local average treatment (total) effect.

Usage

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  ## S3 method for class 'ivmediate'
summary(object, conf.level = object$conf.level[1], ...)

  ## S3 method for class 'summary.ivmediate'
print(x, ...)

Arguments

object

output from mediate function.

conf.level

confidence level for the intervals reported in the summary table.

x

output from summary.mediate function.

...

additional arguments affecting the summary produced.

Author(s)

Teppei Yamamoto, Massachusetts Institute of Technology, teppei@mit.edu.

References

Tingley, D., Yamamoto, T., Hirose, K., Imai, K. and Keele, L. (2014). "mediation: R package for Causal Mediation Analysis", Journal of Statistical Software, Vol. 59, No. 5, pp. 1-38.

Yamamoto, T. (2013). Identification and Estimation of Causal Mediation Effects with Treatment Noncompliance. Unpublished manuscript.

See Also

ivmediate, plot.ivmediate

Examples

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# Examples with JOBS II Field Experiment

# ** For illustration purposes a small number of simulations are used **

require(parallel)
require(MASS)

data(jobs)

a <- lm(comply ~ treat + sex + age + marital + nonwhite + educ + income, 
        data = jobs)
b <- glm(job_dich ~ comply + treat + sex + age + marital + nonwhite + educ + income, 
        data = jobs, family = binomial)
c <- lm(depress2 ~ job_dich * (comply + treat) + sex + age + marital + nonwhite + educ + income, 
        data = jobs)

out <- ivmediate(a, b, c, sims = 50, boot = FALSE,
                 enc = "treat", treat = "comply", mediator = "job_dich")
                 
summary(out)
plot(out)


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