Latent True-Score and Target-Population Anchored Geometric SMD R package ltgsmd version 0.2.2 Implements the latent true-score and target-population anchored geometric standardized mean difference (LTG-SMD) framework for two-group effect-size analysis. Provides plug-in estimation, analytic delta-method confidence intervals using a sample fourth-moment plug-in, bias-corrected and bias-corrected-accelerated nonparametric bootstrap confidence intervals with study x group stratification, denominator-sensitivity profiles, and multi-site meta-analytic wrappers. Includes denominator-diagnostic reporting, a pluggable reliability estimator interface, and an explicit interface for specifying the target reference distribution. Companion software to the methodological paper "The Denominator Chooses the Estimand: A Target-Population True-Score Framework for Standardized Mean Differences" (Nakamura, in press, Psychological Methods). Software Depends: R (>= 4.1.0) Imports: stats Suggests: boot, metafor, psych, testthat (>= 3.0.0), knitr, rmarkdown Daiki Nakamura <nakamura@miyazaki-u.ac.jp> Comprehensive R Archive Network (CRAN) Daiki Nakamura [aut, cre] (ORCID: <https://orcid.org/0000-0002-0625-6918>) MIT + file LICENSE (https://CRAN.R-project.org/package=ltgsmd/LICENSE) 2026-09-02 application/tgz https://CRAN.R-project.org/package=ltgsmd doi:10.32614/CRAN.package.ltgsmd