Jose A. Calvache

Impact by design: The importance of ensuring rigorous research methods right from the start This was a presentation for Health Research Charities Ireland (September, 2025).

ICYMI:

statsepi.substack.com/p/impact-by-...

Noem mij niet blond,
noem mij niet gesluierd
ik ben het licht
dat door beiden heen schijnt.

Je kunt mij niet scheiden
in goed of kwaad,
want liefde
kent geen grenzen
en angst
is geen waarheid.

We zijn geen twee gezichten

Auteur: Marcel Kolder, met dank, als reactie op #Wilders

For researchers with limited background in statistics, we have written this gentle introduction to simulation studies (with @timpmorris.bsky.social and other people from the STRATOS initiative):
bmjopen.bmj.com/content/10/1...

The REDCap Revolution: How a Clinical Data Management Tool Empowered Global Research Communities Twenty years ago, handling clinical data was a tedious, unorganized process—until REDCap, a “big dumb container,” put in seamless guardrails.

The REDCap Revolution: How a Clinical Data Management Tool Empowered Global Research Communities www.the-scientist.com/the-redcap-r... #redcap #bioinformatics #datascience

Thrilled to share our latest piece in Curr Opin Support Palliat Care on #caregiver training in #end-of-life care across #Latin America. Grateful to have coauthored with @jacalvache.bsky.social & Sandra Zambrano 💙 Read here: DOI 10.1097/SPC.0000000000000730

Nice primer on cluster randomized crossover designs.
Will add B-FREE to the examples provided.

jamanetwork.com/journals/jam...

This fourth article in a seven part series presents the Core GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach to addressing risk of bias, publication bias, and rating up certainty
www.bmj.com/content/389/...

YouTube video by Broad Institute MPG Primer: A Practical Primer on Bayesian Statistics (2025)

The most math equations written on a whiteboard by a clinician I've seen - yet amazingly well delivered to a broad audience!
S. Urbut's talk @broadinstitute.org A Practical Primer on Bayesian Statistics youtube.com/watch?v=jcFS...
@mgbresearch.bsky.social @harvardmed.bsky.social

HIRING! We offer 3 fully funded PhD positions to work on research… | Maarten van Smeden HIRING! We offer 3 fully funded PhD positions to work on research methodology with experts in a great medical research environment. Interested in one of these projects? Send us your motivational let...

HIRING!

We offer 3 fully funded PhD positions to work on research methodology with experts in a great medical research environment.

More info: www.linkedin.com/feed/update/...

A peer review guide - Empowering early career reviewers:

🔹 interactive version rachelheyard.pages.uzh.ch/ecr-reviewer...
🔹 pdf version osf.io/ubqyf

Happy Birthday John Snow!!!

Small note: he didn't use disease mapping to 'determine the source' of the London cholera outbreak in 1854. He suspected the Broad Street pump immediately. His map was created to try and convince people that cholera spread through water, a radical argument at the time.

Unbelievable 😰

Reference Collection to push back against "Common Statistical Myths" Note: This topic is a wiki, meaning that this main body of the topic can be edited by others. Use the Reply button only to post questions or comments about material contained in the body, or to sugge...

In clinical research, you will often receive feedback on study design, stats, and/or data analysis from an editor or reviewer that is simply wrong. Here is a list of common "statistical myths" and references you can use to push back.

discourse.datamethods.org/t/reference-...

The 'new regression models' can be described and interpreted very easily, they even allow statistical inference, they perform just as well as good old machine learning and they no longer consume any energy once they have been developed and written down as a formula on a piece of paper!

And more focus on methodological rigor, specifically for the purpose of avoiding Research Waste.

You can't say you weren't warned.

Academics, let's make 2025 the year where we are more explicit and honest about our causal aims and interpretations

Using, for instance, the terms "risk factor" or "associated with a decrease in" is not a clever way to avoid the issue

a countdown clock with the number 10 in the center ALT: a countdown clock with the number 10 in the center

Let us start 2025 in a positive mood: here are 10 methods things researchers can worry *less* about in 2025

YouTube video by World Congress of Epidemiology 2024 WCE2024 - INT02 - Debate - Have DAGS fulfilled their promise?

"Have directed acyclic graphs fullfilled their promise?" - the recording of my debate with @margaritamb.bsky.social at the World Congress of Epidemiology 2024 is now available on YouTube!

www.youtube.com/watch?v=FG79...

#EpiSky #CausalSky #WCE2025

"If you are going to write a scientific paper for publication, you are also going to have to write a response to reviewers". Advice on "How to write a response to reviewers" from a group of editors who've ready many, many thousands of such responses. www.europeanurology.com/article/S030...

GitHub - rmcelreath/stat_rethinking_2025 Contribute to rmcelreath/stat_rethinking_2025 development by creating an account on GitHub.

I am running my statistical rethinking course again starting in January. But this time just for Leipzig locals, so I can work with a smaller group this year and track individual progress better. I think that will help me tune the material, espeically homework, better. Materials still open however.

Every time you write "there is no effect/difference (p>0.05)", when you mean "we found no evidence for an effect/difference (p>0.05)" a baby kitten dies

If you hate statistics like I do, then you'll love my free lectures. Putting science before statistics, 20 lectures from basics of inference & causal modeling to multilevel models & dynamic state space models. It's all free, made with love and sympathy. 🧪 #stats www.youtube.com/playlist?lis...

Thank you. The event was great and also a pleasure meeting you ! And also welcome here to @estherdv.bsky.social !

Okay, I think we’re finally gaining momentum! I’ve identified a few #LatinAmerican scientists in this platform and will be sharing a starter pack next week. Let’s make this grow—share widely, tag others, and join the conversation. I’m aiming to include as many as possible!

Here I am ! I hope to fit ! Thanks @zulmacucunuba.bsky.social

My new favourite kind of thread 😂

In a couple of years we will talk about risk factor studies -- putting in a bunch of covariates in a multivariable regression model and declare the significant factors as important "risk factors" for health -- as one of the biggest mistakes in health research