dot-compute_ci_asymp: Internal: Compute CI using Asymptotic method (Delta method)

In RMediation: Mediation Analysis Confidence Intervals

Internal: Compute CI using Asymptotic method (Delta method)

Description

Computes asymptotic confidence intervals using normal approximation (Sobel test). The standard error is computed using Craig's (1936) formula:

SE = \sqrt{\sigma_y^2\mu_x^2 + \sigma_x^2\mu_y^2 + 2\mu_x\mu_y\rho\sigma_x\sigma_y + \sigma_x^2\sigma_y^2 + \sigma_x^2\sigma_y^2\rho^2}

and the CI is Estimate \pm z_{1-\alpha/2} \times SE, where z_{1-\alpha/2} is the standard normal quantile.

Usage

.compute_ci_asymp(object, alpha = 0.05)

Arguments

object	ProductNormal object
alpha	Significance level (default: 0.05)

Value

List with CI, Estimate, SE

RMediation documentation built on June 20, 2026, 9:08 a.m.