{
  "abstract": "Network models are increasingly used to model multivariate data and many research questions are about whether networks differ across groups. This tutorial provides an accessible introduction to Bayesian model-selection for testing group differences in networks, as implemented in the R package bgms. This approach provides posterior inclusion probabilities and Bayes factors for each group difference, allowing researchers to distinguish evidence for a difference from evidence for equality. We focus the tutorial on group differences in ordinal network models, since the vast majority of data in cross-sectional research are measured on ordinal scales. We explain the model parameters, prior choices, missing-data handling, convergence checks, checks of model fit, and the interpretation of posterior summaries of group differences. The workflow is illustrated with a reproducible comparison of problematic pornography use symptom networks in women and men.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "name": "Jonas Haslbeck"
    },
    {
      "name": "Mona Klau"
    },
    {
      "name": "Tessa F. Blanken"
    },
    {
      "name": "Maarten Marsman"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dgh5ngv4r4jnz.bib",
  "cited_by": 0,
  "doi": "10.31234/osf.io/rx745_v1",
  "fulltext_url": null,
  "id": "dgh5ngv4r4jnz",
  "issns": [],
  "landing_url": "https://osf.io/preprints/psyarxiv/rx745_v1/",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "bepress",
      "Psychometrics"
    ],
    [
      "bepress",
      "Quantitative Methods"
    ],
    [
      "bepress",
      "Quantitative Psychology"
    ],
    [
      "bepress",
      "Social and Behavioral Sciences"
    ],
    [
      "bepress",
      "Statistical Methods"
    ],
    [
      "openalex",
      "3205|Mental Health Research Topics"
    ]
  ],
  "openalex": "W7225087053",
  "pdf_url": "https://osf.io/rx745/download",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dgh5ngv4r4jnz.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:21:21Z",
      "native_id": "rx745",
      "source": "osf",
      "url": "https://osf.io/preprints/psyarxiv/rx745_v1/"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "bepress:Statistical Methods",
      "subfield": "statistics"
    }
  ],
  "title": "Testing Group Differences in Network Models using Bayesian Model Selection: A Tutorial",
  "title_text": "Testing Group Differences in Network Models using Bayesian Model Selection: A Tutorial",
  "type": "preprint",
  "updated_at": "2026-11-03T12:21:21Z",
  "url": "https://research.draconitic.com/paper/dgh5ngv4r4jnz",
  "venue": "PsyArXiv",
  "versions": []
}