confint.indirect {manymome}

Confidence Interval of Indirect Effect or Conditional Indirect Effect

Description

Return the confidence interval of the indirect effect or conditional indirect effect stored in the output of indirect_effect() or cond_indirect().

Usage

## S3 method for class 'indirect'
confint(object, parm, level = 0.95, boot_type, ...)

Arguments

object

The output of indirect_effect() or cond_indirect().

parm

Ignored because the stored object always has only one parameter.

level

The level of confidence, default is .95, returning the 95% confidence interval.

boot_type

If bootstrap confidence interval is to be formed, the type of bootstrap confidence interval. The supported types are "perc" (percentile bootstrap confidence interval, the recommended method) and "bc" (bias-corrected, or BC, bootstrap confidence interval). If not supplied, the stored boot_type will be used.

...

Additional arguments. Ignored by the function.

Details

It extracts and returns the stored confidence interval if available.

The type of confidence interval depends on the call used to compute the effect. This function merely retrieves the stored estimates, which could be generated by nonparametric bootstrapping, Monte Carlo simulation, or other methods to be supported in the future, and uses them to form the percentile confidence interval.

Value

A numeric vector of two elements, the limits of the confidence interval.

See Also

indirect_effect() and cond_indirect()

Examples

dat <- modmed_x1m3w4y1

# Indirect Effect

library(lavaan)
mod1 <-
"
m1 ~ x
m2 ~ m1
y  ~ m2 + x
"
fit <- sem(mod1, dat,
           meanstructure = TRUE, fixed.x = FALSE,
           se = "none", baseline = FALSE)
# R should be at least 2000 or 5000 in real research.
out1 <- indirect_effect(x = "x", y = "y",
                        m = c("m1", "m2"),
                        fit = fit,
                        boot_ci = TRUE, R = 45, seed = 54151,
                        parallel = FALSE,
                        progress = FALSE)
out1
confint(out1)