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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "galamm" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'galamm: Generalized Additive Latent and Mixed Models'
version: 0.4.1
doi: 10.1007/s11336-023-09910-z
identifiers:
- type: doi
  value: 10.32614/CRAN.package.galamm
abstract: Estimates generalized additive latent and mixed models using maximum marginal
  likelihood, as defined in Sorensen et al. (2023) <https://doi.org/10.1007/s11336-023-09910-z>,
  which is an extension of Rabe-Hesketh and Skrondal (2004)'s unifying framework for
  multilevel latent variable modeling <https://doi.org/10.1007/BF02295939>. Efficient
  computation is done using sparse matrix methods, Laplace approximation, and automatic
  differentiation. The framework includes generalized multilevel models with heteroscedastic
  residuals, mixed response types, factor loadings, smoothing splines, crossed random
  effects, and combinations thereof. Syntax for model formulation is close to 'lme4'
  (Bates et al. (2015) <https://doi.org/10.18637/jss.v067.i01>) and 'PLmixed' (Rockwood
  and Jeon (2019) <https://doi.org/10.1080/00273171.2018.1516541>).
authors:
- family-names: Sørensen
  given-names: Øystein
  email: oystein.sorensen@psykologi.uio.no
  orcid: https://orcid.org/0000-0003-0724-3542
preferred-citation:
  type: article
  title: Multilevel Semiparametric Latent Variable Modeling in R with "galamm"
  authors:
  - family-names: S\orensen
    given-names: \Oystein
  journal: Multivariate Behavioral Research
  year: '2024'
  doi: 10.1007/s11336-023-09910-z
repository: https://ropensci.r-universe.dev
repository-code: https://github.com/ropensci/galamm
commit: 31f494110f6db0e8552cd17f99febad1278cf671
url: https://docs.ropensci.org/galamm/
date-released: '2026-08-04'
contact:
- family-names: Sørensen
  given-names: Øystein
  email: oystein.sorensen@psykologi.uio.no
  orcid: https://orcid.org/0000-0003-0724-3542
references:
- type: article
  title: Longitudinal Modeling of Age-Dependent Latent Traits with Generalized Additive
    Latent and Mixed Models
  authors:
  - family-names: S\orensen
    given-names: \Oystein
  - family-names: Walhovd
    given-names: Kristine B.
  - family-names: Fjell
    given-names: Anders M.
  journal: Psychometrika
  year: '2023'
  volume: '88'
  issue: '2'
  doi: 10.1007/s11336-023-09910-z
  start: 456-486