Package: modsem
Type: Package
Title: Latent Interaction (and Moderation) Analysis in Structural
        Equation Models (SEM)
Version: 1.0.21
Authors@R: 
    c(person(given = "Kjell", family = "Solem Slupphaug", 
             email = "slupphaugkjell@gmail.com", role = c("aut", "cre"),
             comment = c(ORCID = "0009-0005-8324-2834")),
      person(given = "Mehmet", family="Mehmetoglu",
             email = "mehmetm@ntnu.no", role=c("ctb"),
             comment = c(ORCID="0000-0002-6092-8551")),
      person(given = "Matthias", family="Mittner",
             email = "matthias.mittner@uit.no", role=c("ctb"),
             comment = c(ORCID="0000-0003-0205-7353")))
Maintainer: Kjell Solem Slupphaug <slupphaugkjell@gmail.com>
Description: Estimation of interaction (i.e., moderation) effects
        between latent variables in structural equation models (SEM).
        The supported methods are: The constrained approach (Algina &
        Moulder, 2001). The unconstrained approach (Marsh et al.,
        2004). The residual centering approach (Little et al., 2006).
        The double centering approach (Lin et al., 2010). The latent
        moderated structural equations (LMS) approach (Klein &
        Moosbrugger, 2000). The quasi-maximum likelihood (QML) approach
        (Klein & Muthén, 2007) The constrained- unconstrained,
        residual- and double centering- approaches are estimated via
        'lavaan' (Rosseel, 2012), whilst the LMS- and QML- approaches
        are estimated via 'modsem' it self. Alternatively model can be
        estimated via 'Mplus' (Muthén & Muthén, 1998-2017). References:
        Algina, J., & Moulder, B. C. (2001).
        <doi:10.1207/S15328007SEM0801_3>. "A note on estimating the
        Jöreskog-Yang model for latent variable interaction using
        'LISREL' 8.3." Klein, A., & Moosbrugger, H. (2000).
        <doi:10.1007/BF02296338>. "Maximum likelihood estimation of
        latent interaction effects with the LMS method." Klein, A. G.,
        & Muthén, B. O. (2007). <doi:10.1080/00273170701710205>.
        "Quasi-maximum likelihood estimation of structural equation
        models with multiple interaction and quadratic effects." Lin,
        G. C., Wen, Z., Marsh, H. W., & Lin, H. S. (2010).
        <doi:10.1080/10705511.2010.488999>. "Structural equation models
        of latent interactions: Clarification of orthogonalizing and
        double-mean-centering strategies." Little, T. D., Bovaird, J.
        A., & Widaman, K. F. (2006). <doi:10.1207/s15328007sem1304_1>.
        "On the merits of orthogonalizing powered and product terms:
        Implications for modeling interactions among latent variables."
        Marsh, H. W., Wen, Z., & Hau, K. T. (2004).
        <doi:10.1037/1082-989X.9.3.275>. "Structural equation models of
        latent interactions: evaluation of alternative estimation
        strategies and indicator construction." Muthén, L.K. and
        Muthén, B.O. (1998-2017). "'Mplus' User’s Guide. Eighth
        Edition." <https://www.statmodel.com/>. Rosseel Y (2012).
        <doi:10.18637/jss.v048.i02>. "'lavaan': An R Package for
        Structural Equation Modeling."
License: MIT + file LICENSE
Encoding: UTF-8
LazyData: true
LinkingTo: Rcpp, RcppArmadillo
Imports: Rcpp, purrr, stringr, lavaan, rlang, nlme, dplyr, mvnfast,
        stats, fastGHQuad, mvtnorm, ggplot2, parallel, plotly, Deriv,
        MASS, Amelia, grDevices, cli, RhpcBLASctl, memoise
Depends: R (>= 4.1.0)
URL: https://modsem.org, https://github.com/kss2k/modsem
Suggests: knitr, rmarkdown, ggpubr, RColorBrewer, MplusAutomation
VignetteBuilder: knitr
Config/roxygen2/version: 8.0.0
RoxygenNote: 7.3.3
Config/pak/sysreqs: cmake make libicu-dev libuv1-dev libssl-dev
Repository: https://kss2k.r-universe.dev
Date/Publication: 2026-07-01 12:45:55 UTC
RemoteUrl: https://github.com/kss2k/modsem
RemoteRef: HEAD
RemoteSha: bec8deb7cc6bae522f74fafad925e390ee66798d
NeedsCompilation: yes
Packaged: 2026-07-01 15:28:34 UTC; root
Author: Kjell Solem Slupphaug [aut, cre] (ORCID:
    <https://orcid.org/0009-0005-8324-2834>),
  Mehmet Mehmetoglu [ctb] (ORCID:
    <https://orcid.org/0000-0002-6092-8551>),
  Matthias Mittner [ctb] (ORCID: <https://orcid.org/0000-0003-0205-7353>)