Package: mlmoderator
Type: Package
Title: Probing, Plotting, and Interpreting Multilevel Interaction
        Effects
Version: 0.2.1
Authors@R: 
    person(
      given   = "Subir",
      family  = "Hait",
      role    = c("aut", "cre"),
      email   = "haitsubi@msu.edu",
      comment = c(ORCID = "0009-0004-9871-9677")
    )
Description: Provides a unified workflow for probing, plotting, and assessing
    the robustness of cross-level interaction effects in two-level mixed-effects
    models fitted with 'lme4' (Bates et al., 2015)
    <doi:10.18637/jss.v067.i01>. Implements simple slopes analysis following
    Aiken and West (1991, ISBN:9780761907121), Johnson-Neyman intervals
    following Johnson and Fay (1950) <doi:10.1007/BF02288864> and Bauer
    and Curran (2005) <doi:10.1207/s15327906mbr4003_5>, and grand- or
    group-mean centering as described in Enders and Tofighi (2007)
    <doi:10.1037/1082-989X.12.2.121>. Includes a slope variance decomposition
    that separates fixed-effect uncertainty from random-slope variance
    (tau11), a contour surface plot of predicted outcomes over the full
    predictor-by-moderator space, and robustness diagnostics comprising
    intraclass correlation coefficient shift analysis and
    leave-one-cluster-out (LOCO) stability checks. Designed for researchers
    in education, psychology, biostatistics, epidemiology, organizational
    science, and other fields where outcomes are clustered within
    higher-level units.
License: MIT + file LICENSE
Encoding: UTF-8
Language: en-US
LazyData: true
RoxygenNote: 7.3.3
Depends: R (>= 4.1.0)
Imports: lme4, ggplot2, stats, utils, grDevices, rlang
Suggests: testthat (>= 3.0.0), dplyr, tibble, knitr, rmarkdown,
        patchwork
Config/testthat/edition: 3
VignetteBuilder: knitr
URL: https://github.com/causalfragility-lab/mlmoderator
BugReports: https://github.com/causalfragility-lab/mlmoderator/issues
NeedsCompilation: no
Packaged: 2026-04-03 22:42:05 UTC; Subir
Author: Subir Hait [aut, cre] (ORCID: <https://orcid.org/0009-0004-9871-9677>)
Maintainer: Subir Hait <haitsubi@msu.edu>
Repository: CRAN
Date/Publication: 2026-04-03 23:40:01 UTC
Built: R 4.5.2; ; 2026-04-08 01:55:21 UTC; unix
