Betas-Select in Structural Equation Models and Linear Models R package betaselectr version 0.2.2 It computes betas-select, coefficients after standardization in structural equation models and regression models, standardizing only selected variables. Supports models with moderation, with product terms formed after standardization. It also offers confidence intervals that account for standardization, including bootstrap confidence intervals as proposed by Cheung et al. (2022) <doi:10.1037/hea0001188>. An introduction to the package can be found in Sun et al. (2026) <doi:10.1080/00273171.2026.2672692>. Software Depends: R (>= 3.5.0) Imports: boot, stats, lavaan, methods, numDeriv, manymome, pbapply, lavaan.printer 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>), Rong Wei Sun [aut] (ORCID: <https://orcid.org/0000-0003-0034-1422>), Florbela Chang [aut] (ORCID: <https://orcid.org/0009-0003-9931-501X>), Wendie Yang [aut] (ORCID: <https://orcid.org/0009-0000-8388-6481>), Sing-Hang Cheung [aut] (ORCID: <https://orcid.org/0000-0001-5182-0752>) GPL (>= 3) 2026-07-11 application/tgz https://CRAN.R-project.org/package=betaselectr doi:10.32614/CRAN.package.betaselectr