Christel Hellberg
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christelh.bsky.social
Christel Hellberg
@christelh.bsky.social
490 followers 870 following 76 posts
Interested in systematic reviews and other types of evidence synthesis as well as evidence based research. PhD in medicine.
Intresserad av systematiska översikter och annan typ av forskningssammanställningar.
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Reposted by Christel Hellberg
dsquintana.bsky.social
Our paper on improving statistical reporting in psychology is now online 🎉

As a part of this paper, we also created the Transparent Statistical Reporting in Psychology checklist, which researchers can use to improve their statistical reporting practices

www.nature.com/articles/s44...
Transparent and comprehensive statistical reporting is critical for ensuring the credibility, reproducibility, and interpretability of psychological research. This paper offers a structured set of guidelines for reporting statistical analyses in quantitative psychology, emphasizing clarity at both the planning and results stages. Drawing on established recommendations and emerging best practices, we outline key decisions related to hypothesis formulation, sample size justification, preregistration, outlier and missing data handling, statistical model specification, and the interpretation of inferential outcomes. We address considerations across frequentist and Bayesian frameworks and fixed as well as sequential research designs, including guidance on effect size reporting, equivalence testing, and the appropriate treatment of null results. To facilitate implementation of these recommendations, we provide the Transparent Statistical Reporting in Psychology (TSRP) Checklist that researchers can use to systematically evaluate and improve their statistical reporting practices (https://osf.io/t2zpq/). In addition, we provide a curated list of freely available tools, packages, and functions that researchers can use to implement transparent reporting practices in their own analyses to bridge the gap between theory and practice. To illustrate the practical application of these principles, we provide a side-by-side comparison of insufficient versus best-practice reporting using a hypothetical cognitive psychology study. By adopting transparent reporting standards, researchers can improve the robustness of individual studies and facilitate cumulative scientific progress through more reliable meta-analyses and research syntheses.
November 14, 2025 at 8:43 PM
Reposted by Christel Hellberg
carolinearmitage.bsky.social
A really great set of 3 papers for anyone wanting to get to grips with systemic issues in scientific publishing in a concise and data-supported way!
hansonmark.bsky.social Mark A. Hanson @hansonmark.bsky.social · 4d
We wrote the Strain on scientific publishing to highlight the problems of time & trust. With a fantastic group of co-authors, we present The Drain of Scientific Publishing:

a 🧵 1/n

Drain: arxiv.org/abs/2511.04820
Strain: direct.mit.edu/qss/article/...
Oligopoly: direct.mit.edu/qss/article/...
A table showing profit margins of major publishers. A snippet of text related to this table is below. 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. A figure detailing the drain on researcher time. 1. The four-fold drain 1.2 Time The number of papers published each year is growing faster than the scientific workforce, with the number of papers per researcher almost doubling between 1996 and 2022 (Figure 1A). This reflects the fact that publishers’ commercial desire to publish (sell) more material has aligned well with the competitive prestige culture in which publications help secure jobs, grants, promotions, and awards. To the extent that this growth is driven by a pressure for profit, rather than scholarly imperatives, it distorts the way researchers spend their time. The publishing system depends on unpaid reviewer labour, estimated to be over 130 million unpaid hours annually in 2020 alone (9). Researchers have complained about the demands of peer-review for decades, but the scale of the problem is now worse, with editors reporting widespread difficulties recruiting reviewers. The growth in publications involves not only the authors’ time, but that of academic editors and reviewers who are dealing with so many review demands. Even more seriously, the imperative to produce ever more articles reshapes the nature of scientific inquiry. Evidence across multiple fields shows that more papers result in ‘ossification’, not new ideas (10). It may seem paradoxical that more papers can slow progress until one considers how it affects researchers’ time. While rewards remain tied to volume, prestige, and impact of publications, researchers will be nudged away from riskier, local, interdisciplinary, and long-term work. The result is a treadmill of constant activity with limited progress whereas core scholarly practices – such as reading, reflecting and engaging with others’ contributions – is de-prioritized. What looks like productivity often masks intellectual exhaustion built on a demoralizing, narrowing scientific vision. A table of profit margins across industries. The section of text related to this table is below: 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. The costs of inaction are plain: wasted public funds, lost researcher time, compromised scientific integrity and eroded public trust. Today, the system rewards commercial publishers first, and science second. Without bold action from the funders we risk continuing to pour resources into a system that prioritizes profit over the advancement of scientific knowledge.
November 13, 2025 at 8:40 AM
Reposted by Christel Hellberg
fiaewald.se
Ett av våra mest lyssnade avsnitt är det med just Lena Marcusson som pratar om sin utredning av SKR.
soupodden.podbean.com/e/staten-och...
”Staten och kommunsektorn – samverkan, självstyrelse, styrning” SOU 2024:43 | SOU-podden
Professor emeritus Lena Marcusson har utrett statens former för samverkan och dialog med kommuner och regioner. Ett tydligt uppdrag kan man tycka tills man inser den enorma komplexitet som det svårfån...
soupodden.podbean.com
November 13, 2025 at 7:21 AM
Reposted by Christel Hellberg
uttranemma.bsky.social
Lärare, vi vill att ni berättar!

www.vilarare.se/nyheter/skol...
Riksrevisionens kritik: Svagt stöd för vetenskaplig grund
Att som lärare förlita sig på stödmaterial från Skolverket, SPSM och Skolforskningsinstitutet kan innebära risker. Riksrevisionen riktar hård kritik mot skolmyndigheterna i en ny granskning, där de sk...
www.vilarare.se
November 13, 2025 at 7:06 AM
Reposted by Christel Hellberg
farhadshokraneh.bsky.social
Probably my best but definitely my last webinar of 2025, I promise 🤞 I know you are fed up, but the recording is chaptered 🎊

www.youtube.com/watch?v=h4xw...

@htaiorg.bsky.social

#HTA #AI #HEOR #GenAI #LLM #SystematicReviews #EvidenceSynthesis
Responsible Use of AI in Evidence Synthesis: Filling the Gap Between Research and Practice
YouTube video by Farhad Shokraneh
www.youtube.com
November 9, 2025 at 8:15 PM
Reposted by Christel Hellberg
jbiebhc.bsky.social
JBI critical appraisal tools assist in assessing the trustworthiness, relevance and results of published papers.

Go to our website for 15 checklists: https://jbi.global/critical-appraisal-tools
Screenshot of JBI webpage displaying: CRITICAL APPRAISAL TOOLS Links to published papers Link to Critical Appraisal video for JBI SUMARI
November 7, 2025 at 5:45 AM
Reposted by Christel Hellberg
marijanewhite.bsky.social
Hey #medlibs, I built a tool for making it easier to create proximity search strings in PubMed. Check it out!

I presented at PNC-MLA this afternoon and will follow up with a link to the recording when it's posted.
Pairwise PubMed Search Generator
The Pairwise PubMed Search Generator is a web application for working around the truncation limit...
pairwise-pubmed.streamlit.app
November 6, 2025 at 11:32 PM
Reposted by Christel Hellberg
smutclyde.bsky.social
One of the first papermills was 'MedChina' - a Dr Jia-Li Liu - following a template to churn out fake meta-analysis papers.
forbetterscience.com/2022/06/07/t...

12 years too late, the editors of Gene finally got around to checking the .doc metadata of the manuscript.
pubpeer.com/publications...
November 6, 2025 at 4:16 AM
christelh.bsky.social
Happy halloween 🎃
October 31, 2025 at 6:04 PM
christelh.bsky.social
This is a image from a swedish pharmacy add. I have some questions….
October 27, 2025 at 5:55 PM
Reposted by Christel Hellberg
alexh.bsky.social
MetaROR, a platform for reviews of research on research, is a success! We have published 24 sets of reviews and have 16 submissions in process. MetaROR now has 9 partners - these are journals that agree to use our reviews when authors submit to them. metaror.org #metascience #openaccess
Home - MetaROR
MetaResearch Open Review MetaResearch Open Review MetaResearch Open Review A new platform designed to transform how we review and share metaresearch A new platform designed to transform
metaror.org
October 26, 2025 at 10:33 PM
Reposted by Christel Hellberg
europepmc.org
Looking to make your license more restrictive to stop AI from using your research?

STOP!
Restrictive licenses don’t block AI, but block the community from accessing and building on your work.

Learn more below 👇
@creativecommons.bsky.social
#OAweek #AcademicChatter #PhDsky 🧪
europepmc.org Europe PMC @europepmc.org · Jul 15
Missed our webinar on the use of CC-BY for research and AI? We covered:
- What are Creative Commons licenses
- Why some funders mandate CC-BY
- How @ebi.embl.org databases innovate with CC-BY
- How CC-BY impacts AI training

Catch up here: youtu.be/vr6vFqo8xKg
@creativecommons.bsky.social
What happens when you choose closed. What Creative Commons licenses mean for research and AI.
YouTube video by EuropePMC
youtu.be
October 22, 2025 at 10:23 AM
Reposted by Christel Hellberg
jacobgudiol.traningslara.se
Även om du inte är intresserad av frågan i sig så är det här bra information kring hur du upptäcker pseudovetenskap idag.
traningslara.se/korkade-grej...
Korkade grejer antivaxxare säger - vaccinen räddade inga liv!
För några dagar sedan lade jag upp en video där jag förklarade varför ett uttalande från Martin Kulldorff i Agenda var lika oärligt som att påstå att vi inte har data som visar att rökning är skadligt...
traningslara.se
October 21, 2025 at 6:50 AM
Reposted by Christel Hellberg
dsquintana.bsky.social
Here are two "I can't believe these are free" online stats texts books that cover both underlying principles and practical applications in R that I regularly refer to.

Learning Statistics with R
learningstatisticswithr.com

Doing Meta-Analysis with R bookdown.org/MathiasHarre...
A screenshot with the following Learning statistics with R: A tutorial for psychology students and other beginners. (Version 0.6.1) Danielle Navarro (bookdown translation: Emily Kothe) 2019-01-11 Overview Learning Statistics with R covers the contents of an introductory statistics class, as typically taught to undergraduate psychology students, focusing on the use of the R statistical software. The book discusses how to get started in R as well as giving an introduction to data manipulation and writing scripts. From a statistical perspective, the book discusses descriptive statistics and graphing first, followed by chapters on probability theory, sampling and estimation, and null hypothesis testing. After introducing the theory, the book covers the analysis of contingency tables, t-tests, ANOVAs and regression. Bayesian statistics are covered at the end of the book. A screenshot with the following Welcome! Welcome to the online version of “Doing Meta-Analysis with R: A Hands-On Guide”. This book serves as an accessible introduction into how meta-analyses can be conducted in R. Essential steps for meta-analysis are covered, including pooling of outcome measures, forest plots, heterogeneity diagnostics, subgroup analyses, meta-regression, methods to control for publication bias, risk of bias assessments and plotting tools. Advanced, but highly relevant topics such as network meta-analysis, multi-/three-level meta-analyses, Bayesian meta-analysis approaches, and SEM meta-analysis are also covered. The programming and statistical background covered in the book are kept at a non-expert level. A print version of this book has been published with Chapman & Hall/CRC Press (Taylor & Francis)
October 17, 2025 at 8:43 AM
Reposted by Christel Hellberg
debruine.bsky.social
Please help us, #MetaScience community!

It's time to decide on a forever name for papercheck (scienceverse.github.io/papercheck/). We don't want it to be confused with papercheck.ai, and we plan to check other research artifacts like repo contents, data, code, and prereg. Any suggestions?
Check Scientific Papers for Best Practices
A modular, extendable system for automatically checking scientific papers for best practices using text search, R code, and/or (optional) LLM queries.
scienceverse.github.io
October 14, 2025 at 1:06 PM
Reposted by Christel Hellberg
paulglasziou.bsky.social
Friday tip for fast reviews. Our "2weekSR" process uses automated tools (see tera-tools.com): ReviewWizard (protocol), SearchRefiner, PolyGlot (translate to multiple databases), Screenatron (&Mechatron for AI-assist), SpiderCite (forward&backward), ... video overview:
www.youtube.com/watch?v=ghW_...
Using the Evidence Review Accelerator (TERA)
YouTube video by The Accelerator of Evidence
www.youtube.com
October 3, 2025 at 3:59 AM
christelh.bsky.social
Hur många dygn är det egentligen kvar?
Urklipp på en notis från Expressen med orden ”och nu är det bara ett dygn kvar innan ett dygn tills den federala statsapparaten stängs ner”
September 30, 2025 at 5:39 AM
Reposted by Christel Hellberg
envevidence.bsky.social
📣 We need your input!
We're planning updates to the CEE Database of Evidence Reviews (CEEDER). If you produce or use #EnvironmentalEvidence, complete our short survey:
👉 forms.gle/yz2p2acStLyK...
🗓 Survey open until Oct 20, 2025

Share with your networks!🌏 #SciPol #EvidenceSynthesis #EvidenceUse
September 25, 2025 at 1:31 PM
Reposted by Christel Hellberg
dangerwhale.bsky.social
I should also have shamelessly promoted this fantastic piece of work, where I mansplain everything I think I know about editing that you were afraid to ask. www.sciencedirect.com/science/arti...
How we promote rigour in systematic reviews and evidence maps at Environment International
In 2016, Environment International became the first environmental health journal to adopt specialist policies for handling systematic review (SR) subm…
www.sciencedirect.com
September 25, 2025 at 4:52 PM
Reposted by Christel Hellberg
rasushrestha.bsky.social
Correlation vs Causation

#tylenol #acetaminophen
Did you know that every single person who confuses correlation and causation ends up dying?! 😵
September 23, 2025 at 10:31 AM
Reposted by Christel Hellberg
elizabethjacobs.bsky.social
Many studies have shown that there is no relationship between MMR vaccine and the development of autism. Here are two of the best.

This one followed every single child born in Denmark from 1991 through 1998 (n=537,303). There was no association.
A Population-Based Study of Measles, Mumps, and Rubella Vaccination and Autism | NEJM
It has been suggested that vaccination against measles, mumps, and rubella (MMR) is a cause of autism. We conducted a retrospective cohort study of all children born in Denmark from January 1991 th...
www.nejm.org
September 22, 2025 at 2:37 PM
Reposted by Christel Hellberg
davidbrax.bsky.social
Min tredje krönika i Curie handlar om citeringars tveksamma värde. www.tidningencurie.se/kronikor/ar-...
Är din mest citerade artikel också din bästa artikel? | Tidningen Curie
Vad säger egentligen antalet citeringar om forskningens kvalitet? David Brax skriver om värdet av de sällan citerade artiklarna.
www.tidningencurie.se
September 23, 2025 at 1:06 PM
Reposted by Christel Hellberg
annajessica.bsky.social
The actual evidence map can be found at www.sbu.se/384e
Non-pharmaceutical interventions to prevent transmission of infectious diseases in pandemics – an evidence map of systematic reviews
www.sbu.se
September 17, 2025 at 9:43 AM
Reposted by Christel Hellberg
annajessica.bsky.social
We published a new article! Non-pharmaceutical interventions to prevent community transmission of infectious diseases with pandemic potential—an umbrella review and evidence map url: academic.oup.com/eurpub/artic...
Non-pharmaceutical interventions to prevent community transmission of infectious diseases with pandemic potential—an umbrella review and evidence map
Abstract. During the COVID-19 pandemic, most countries implemented non-pharmaceutical interventions (NPIs) to mitigate virus transmission and decrease morb
academic.oup.com
September 17, 2025 at 9:38 AM