Likelihood-Based Confidence Interval in Structural Equation Models R package semlbci version 0.12.1 Forms likelihood-based confidence intervals (LBCIs) for parameters in structural equation modeling, introduced in Cheung and Pesigan (2023) <doi:10.1080/10705511.2023.2183860>. Currently implements the algorithm illustrated by Pek and Wu (2018) <doi:10.1037/met0000163>, and supports the robust LBCI proposed by Falk (2018) <doi:10.1080/10705511.2017.1367254>. Software Depends: R (>= 4.0.0) Imports: lavaan (>= 0.6.13), nloptr, stats, utils, MASS, ggplot2, ggrepel, rlang, pbapply, callr, methods Suggests: testthat (>= 3.0.0), knitr, rmarkdown Shu Fai Cheung <shufai.cheung@gmail.com> Comprehensive R Archive Network (CRAN) Shu Fai Cheung [aut, cre] (ORCID: <https://orcid.org/0000-0002-9871-9448>), Ivan Jacob Agaloos Pesigan [ctb] (ORCID: <https://orcid.org/0000-0003-4818-8420>) GPL-3 2026-07-27 application/tgz https://CRAN.R-project.org/package=semlbci doi:10.32614/CRAN.package.semlbci