Mariska Leeflang's Avatar

Mariska Leeflang

@mariskaleeflang.bsky.social

Professor in Clinical epidemiology, with a focus on medical tests and diagnostic test accuracy #SystematicReviews. Interested in #reproducibility of science. osiris4r.eu #AcademicSky #EpiSky

2,583 Followers  |  458 Following  |  123 Posts  |  Joined: 08.10.2023  |  2.0974

Latest posts by mariskaleeflang.bsky.social on Bluesky

Figure 1: The important dimensions of CAILs across research and education; clockwise from 12 o’clock: Con-
ceptual Clarity is the idea that terms should refer. Critical Thinking is deep engagement with the relationships
between statements about the world. Decoloniality is the process of de-centring and addressing dominant
harmful views and practices. Respecting Expertise is the epistemic compact between professionals and society.
Slow Science is a disposition towards preferring psychologically, techno-socially, and epistemically healthy
practices. The lines between dimensions represent how they are interwoven both directly and indirectly.

Figure 1: The important dimensions of CAILs across research and education; clockwise from 12 o’clock: Con- ceptual Clarity is the idea that terms should refer. Critical Thinking is deep engagement with the relationships between statements about the world. Decoloniality is the process of de-centring and addressing dominant harmful views and practices. Respecting Expertise is the epistemic compact between professionals and society. Slow Science is a disposition towards preferring psychologically, techno-socially, and epistemically healthy practices. The lines between dimensions represent how they are interwoven both directly and indirectly.

New preprint! @marentierra.bsky.social @irisvanrooij.bsky.social & I have been working on what CAIL means to showcase & propagate the idea of thinking very differently to tech industry norms on "artificial intelligence"

Towards Critical Artificial Intelligence Literacies doi.org/10.5281/zeno...

1/

02.12.2025 06:58 β€” πŸ‘ 93    πŸ” 32    πŸ’¬ 2    πŸ“Œ 6

Lots of great content in the latest newsletter from the Society for Philosophy of Science in Practice (SPSP is so good at fostering community). If you scroll all the way to the last feature I pour my heart out in the Proust Questionnaire. So good of Saana Jukola to give me the opportunity πŸ™

25.11.2025 19:08 β€” πŸ‘ 24    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
This paper provides guidance and tools for conducting open and reproducible systematic reviews in psychology. It emphasizes the importance of systematic reviews for evidence-based decision-making and the growing adoption of open science practices. Open science enhances transparency, reproducibility, and minimizes bias in systematic reviews by sharing data, materials, and code. It also fosters collaborations and enables involvement of non-academic stakeholders. The paper is designed for beginners, offering accessible guidance to navigate the many standards and resources that may not obviously align with specific areas of psychology. It covers systematic review conduct standards, pre-registration, registered reports, reporting standards, and open data, materials and code. The paper is concluded with a glimpse of recent innovations like Community Augmented Meta-Analysis and independent reproducibility checks.

This paper provides guidance and tools for conducting open and reproducible systematic reviews in psychology. It emphasizes the importance of systematic reviews for evidence-based decision-making and the growing adoption of open science practices. Open science enhances transparency, reproducibility, and minimizes bias in systematic reviews by sharing data, materials, and code. It also fosters collaborations and enables involvement of non-academic stakeholders. The paper is designed for beginners, offering accessible guidance to navigate the many standards and resources that may not obviously align with specific areas of psychology. It covers systematic review conduct standards, pre-registration, registered reports, reporting standards, and open data, materials and code. The paper is concluded with a glimpse of recent innovations like Community Augmented Meta-Analysis and independent reproducibility checks.

There is no reason why systematic reviews can't be open. The data used for synthesis is *already* open and there are many excellent open source tools that can facilitate the easy sharing of analysis scripts.

Here's a nice guide for performing open systematic reviews doi.org/10.1525/coll...

24.11.2025 12:10 β€” πŸ‘ 116    πŸ” 39    πŸ’¬ 0    πŸ“Œ 0
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Preregistrations without Code do not Prevent P-Hacking: You can increase your chances for a significant finding in the absence of real effects even with correlations and t test despite having preregistered your hypothesis (e.g., simply changing arguments in the functions).

doi.org/10.31222/osf...

25.11.2025 12:33 β€” πŸ‘ 7    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0
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πŸ† Institutional: The Brazilian Reproducibility Initiative is a nationwide effort to evaluate research results in laboratory biology & the largest coordinated replication effort in the field worldwide, showcasing the potential of country-level research improvements. @redebrrepro.bsky.social (3/5)

24.11.2025 09:59 β€” πŸ‘ 22    πŸ” 5    πŸ’¬ 2    πŸ“Œ 3
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Together w/ @odissei.bsky.social, I4R is organizing CBS Replication Games, re-analyzing 6 papers w/ Dutch administrative microdata! Teams get 1 month of microdata access in Feb 2026, meeting in Utrecht for a three-day hackathon. Interested? Register by Nov 30! tinyurl.com/yx3e7b3a

25.11.2025 13:07 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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Op 24 november 1991 overleed de charismatische Queen-zanger Freddie Mercury, die een dag ervoor bevestigde dat hij AIDS had. Zijn fenomenale stembeheersing is mijns inziens het mooist te horen in het ontroerende 'Love of my life'.

Jullie favoriete nummer (m.u.v. 'Bohemian Rhapsody')?

24.11.2025 17:30 β€” πŸ‘ 36    πŸ” 4    πŸ’¬ 23    πŸ“Œ 2
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β€œLeer studenten hoe AI denkt: namelijk niet.” Helder pleidooi van @rensbod.bsky.social @trouw.nl

22.11.2025 07:22 β€” πŸ‘ 41    πŸ” 28    πŸ’¬ 1    πŸ“Œ 1
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The CDC website was quietly edited last night to claim there’s β€œno evidence” that vaccines don’t cause autism.

This is false.

But this is damaging, even beyond people’s confidence in vaccines.

For the first time in my career, I cannot tell people to trust what the CDC website without hesitation.

20.11.2025 17:26 β€” πŸ‘ 158    πŸ” 49    πŸ’¬ 8    πŸ“Œ 8

Grappig.
Nooit bij stilgestaan, maar bij navraag dachten mijn kinderen ook dat wimpels wimpers waren.

20.11.2025 06:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
An open call to join the CMI Communications editorial team: editor in viral infections and antiviral therapy CMI Communications, the official open-access journal of the European Society of Clinical Microbiology and Infectious Diseases (ESCMID), is looking for an editor with strong clinical and research exper...

🌱 New opportunity: We are recruiting a new associate editor for our journal with expertise in viral infections & antiviral therapy. Read our call and apply if you're a good fit! www.cmi-comms.org/article/S295...

⏰ Deadline: 15 Dec 2025

#IDSky #clinmicro #virology #virosky

18.11.2025 15:38 β€” πŸ‘ 6    πŸ” 7    πŸ’¬ 0    πŸ“Œ 0
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R4E Sponsored Webinar: Applied Regression Analysis Using R β€” R4E Dr. Mike Malek-Ahmadi, from Banner Alzheimer’s Institute in Phoenix, AZ (USA) will be leading this workshop! This webinar will take place Wednesday November 19th, 2025. Register here This…

Starting in 24 hours! Be sure to register!
Participate in R4E's online seminar on November 19th at 10 a.m. Eastern Time/4 p.m. Central European Time. This event welcomes all inquisitive individuals. For more information, check out: repro4everyone.org/blog/r4e-spo...
#academicchatter #academicsky

18.11.2025 16:02 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Diergeneeskunde

En zwemdiploma A t/m F (dat bestond toen nog)

En registratie Epidemioloog B

17.11.2025 07:58 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It's really not a surprise. I've spent the last 5 years explaining to researchers why samples collected over 2 consecutive EU projects and extracted using wildly different protocols are in no way comparable.

Too many labs think omics-related research is "just sequencing innit".

16.11.2025 12:54 β€” πŸ‘ 21    πŸ” 8    πŸ’¬ 2    πŸ“Œ 0
shows all the ways you can get a CI for a proportion in R

shows all the ways you can get a CI for a proportion in R

My #rstats cheat code for today is the binom.confint function in the binom package that will spit out *12* different ways of calculating a CI for a proportion.

Also, this is why you use R for statistics...

(and of course the correct CI method is bayes 😎)

16.11.2025 02:52 β€” πŸ‘ 66    πŸ” 9    πŸ’¬ 5    πŸ“Œ 5
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Ready to level up your research game? Join us for our next session on transparent literature reviews! Come along in person or tune in online. All the details are below!

14.11.2025 15:34 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
First page of Opinion piece: "Conceptual and methodological flaws undermine claims of a link between the gut microbiome and autism"

First page of Opinion piece: "Conceptual and methodological flaws undermine claims of a link between the gut microbiome and autism"

The link between the gut #microbiome and autism is not backed by science, researchers say.

Read the full opinion piece in @cp-neuron.bsky.social: spkl.io/63322AbxpA

@wiringthebrain.bsky.social, @statsepi.bsky.social, & @deevybee.bsky.social

13.11.2025 16:00 β€” πŸ‘ 231    πŸ” 116    πŸ’¬ 5    πŸ“Œ 30

Not sure - I think around 1st Feb 2024 (20 years from first formal day at work and also probably 20 years from retirement)

14.11.2025 07:16 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Ik vertel onderzoekers waarom ze met hun onderzoek niet de gestelde vragen kunnen beantwoorden.

(en dan kijken we daarna hoe dat onder de gegeven omstandigheden wel zou kunnen)

14.11.2025 06:47 β€” πŸ‘ 14    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Landelijke studie op de SEH moet verband tussen roken en acute klachten aantonen. β€˜Pas als je het in cijfers ziet, dringt de schade van nicotine door’ Rookwaar: Tijdens een onderzoeksdag op de SEH van Nederlandse ziekenhuizen wordt onderzocht of acute klachten verband houden met nicotinegebruik. Artsen maken zich onder meer ernstig zorgen over jonge...

www.nrc.nl/nieuws/2025/...

Interessante actie, maar is dit onderzoek of preventie (de tekst is wat ambigu)? Als je van alle acute problemen gaat tellen hoeveel mensen vapen, ga je in elk geval geen causaal verband aan kunnen tonen. Of mis ik iets?

14.11.2025 06:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

"Funders hold the cards"

13.11.2025 06:56 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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a close up of a feather on a rock with the words `` hello '' written in white letters . ALT: a close up of a feather on a rock with the words `` hello '' written in white letters .

I'm in Sydney until December 15th.

If any tweeps (blueskyers?) are around lets get lunch or coffee!

Also ... if you allow random strangers to join your D&D* group for a few weeks ... pleeeeeeease let me know :)))

___
* or whatever pen & paper y'all are up to

12.11.2025 03:42 β€” πŸ‘ 15    πŸ” 6    πŸ’¬ 4    πŸ“Œ 0
Methodological review reveals essential gaps and inconsistencies in clinical claims, effects and outcomes in HTA reviews of diagnostic tests Essential first steps in performing a health technology assessment (HTA) for a diagnostic test include: consideration of the clinical pathway in which the test will be used, specifying the clinical cl...

Methodological review reveals essential gaps and inconsistencies in clinical claims, effects and outcomes in HTA reviews of diagnostic tests - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

10.11.2025 15:50 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Het Wonderkabinet De Atelier en Wunderkammer van Hester Loeff. Met handgemaakte kabinetjes en schelptekeningen maar ook naturalia zoals fossielen en schelpen.

Voor mensen die mijn webshop willen bekijken, het is niks bijzonders. Er staat 1 product in maar wel met 6 verschillende betaalmethoden. En bestellen kan nog steeds gewoon hier op Bluesky voornamelijk tot ik alles uitgevogeld heb.

Www.hetwonderkabinet.nl

08.11.2025 13:24 β€” πŸ‘ 89    πŸ” 17    πŸ’¬ 17    πŸ“Œ 0
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Domme dingen doen met slimme technologie - Arts en Auto - Frank van Wijck Wat speelt in de zorg?Β Frank van Wijck schrijft op vrijdag over actuele uitspraken en ontwikkelingen.Β Deze keer: aanmeldzuilen.

De zorg doet domme dingen met slimme technologie. Terwijl het zo eenvoudig beter kan. www.artsenauto.nl/domme-dingen...

07.11.2025 07:29 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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Winkeldraadje van Het Wonderkabinet. Wat heb ik dit najaar te koop? Ik post alles hieronder zolang de webshop nog niet staat. Niet alles is op voorraad maar het meeste kan in opdracht (zolang de voorraad strekt en ik nog tijd heb). Graag een DM als je iets ziet en repost is lief!

03.11.2025 18:59 β€” πŸ‘ 163    πŸ” 120    πŸ’¬ 2    πŸ“Œ 12
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β€˜Opposing the inevitability of AI at universities is possible and necessary’ | Radboud University Since the widespread release of ChatGPT in December of 2022, AI has taken over much of the world by storm – including academia. Most of this happened with very little pushback, despite a myriad of iss...

β€˜Study after study shows that students want to develop these critical thinking skills, are not lazy, and large numbers of them would be in favor of banning ChatGPT and similar tools in universities’, says @olivia.science www.ru.nl/en/research/...

01.11.2025 22:26 β€” πŸ‘ 2157    πŸ” 859    πŸ’¬ 27    πŸ“Œ 86

Ik heb nog nieuwe groene in de maak. Ik maak ze nu met ontspiegeld Clarity glas, dat is een stuk mooier (zie foto) maar ook de prijs is anders. Ze komen dan inclusief (aangetekend) verzenden op €530,-
Als je er nog een wil reserveren (of een andere kleur) dan kun je een DM sturen.

Repost is lief

01.11.2025 07:41 β€” πŸ‘ 58    πŸ” 36    πŸ’¬ 1    πŸ“Œ 1

Leven als kat en hond...
Ze zijn prachtig!

31.10.2025 17:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

#EpiSky, don't miss out on the opportunity to listen to interesting & entertaining keynote lectures by @mariskaleeflang.bsky.social (@amsterdamumc.bsky.social) & #OliverKuss (@ddzdiabetes.bsky.social, @hhu.de)! It's free & there will be food!

30.10.2025 16:45 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

@mariskaleeflang is following 20 prominent accounts