Evidence map›Paper›PMID 34264449›Full record

SynthesisPsychometrika2022

Meta-analytic Gaussian Network Aggregation.

Sacha Epskamp, Adela-Maria Isvoranu, Mike W-L Cheung

Erratum issuedAbstract readMeta-Analysis
In one paragraph

Synthesis in Psychometrika, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Psychological Network of Stress, Coping and Social Support in an Aboriginal Population.International journal of environmental research and public health · 2022
    Trial
  4. Article
  5. Article
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  7. Article
  8. Article
  9. Article
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  12. Network analysis: An overview for mental health research.International journal of methods in psychiatric research · 2024
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Generalized network psychometrics of eating-disorder psychopathology.The International journal of eating disorders · 2022
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Sacha EpskampDepartment of Psychology, University of Amsterdam, Amsterdam, Netherlands. sacha.epskamp@gmail.com.ORCID 0000-0003-4884-8118
Adela-Maria IsvoranuDepartment of Psychology, University of Amsterdam, Amsterdam, Netherlands.
Mike W-L CheungDepartment of Psychology, National University of Singapore, Singapore, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A growing number of publications focus on estimating Gaussian graphical models (GGM, networks of partial correlation coefficients). At the same time, generalizibility and replicability of these highly parameterized models are debated, and sample sizes typically found in datasets may not be sufficient for estimating the underlying network structure. In addition, while recent work emerged that aims to compare networks based on different samples, these studies do not take potential cross-study heterogeneity into account. To this end, this paper introduces methods for estimating GGMs by aggregating over multiple datasets. We first introduce a general maximum likelihood estimation modeling framework in which all discussed models are embedded. This modeling framework is subsequently used to introduce meta-analytic Gaussian network aggregation (MAGNA). We discuss two variants: fixed-effects MAGNA, in which heterogeneity across studies is not taken into account, and random-effects MAGNA, which models sample correlations and takes heterogeneity into account. We assess the performance of MAGNA in large-scale simulation studies. Finally, we exemplify the method using four datasets of post-traumatic stress disorder (PTSD) symptoms, and summarize findings from a larger meta-analysis of PTSD symptom.

Indexed as

PsychometricsComputer SimulationNormal DistributionTimegaussian graphical modelmeta-Analysisnetwork psychometrics

Identifiers

PMID34264449
PMCPMC9021114

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.