Nicholas Judd
@njudd.com
420 followers 160 following 34 posts
Jacobs & Pro Futura Scientia fellow Researcher @ StockholmUni + Donders environment effects -> cognitive and neural dev
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Reposted by Nicholas Judd
Reposted by Nicholas Judd
mcxfrank.bsky.social
Our position paper is now out: "Learning Variability Network Exchange (LEVANTE): A Global Framework for Measuring Children's Learning Variability Through Collaborative Data Sharing".

srcd.onlinelibrary.wiley.com/doi/10.1111/...
(preprint: osf.io/preprints/ps...)

What is LEVANTE? 🧵
Screenshot of paper title
Reposted by Nicholas Judd
drewhalbailey.bsky.social
Random Intercepts and Slopes in Longitudinal Models: When Are They "Good" and "Bad" Controls?

or

Illusory Traits 2: Revenge of the Slopes

Led by Siling Guo, with Nicolas Hübner, Steffen Zitzmann, Martin Hecht, and Kou Murayama.

Comments welcome!

osf.io/preprints/ps...
OSF
osf.io
njudd.com
A similar effect happens for telomeres, yet 13 editors agreed it shouldn't get past the desk.

Possibly it was seen as narrow in scope, yet education has one of the largest confounded effects with aging biomarkers. If this is happening for education... Mediterranean diets, etc watch out.
njudd.com
Here, you can even see how the weight of evidence shifts across 6 different structural brain metrics related to aging when you look at educational attainment (correlational) and education from a policy change (causal).
njudd.com
Using the largest sample of telomere length around (UK Biobank), we really find absolutely no effect from an additional year of education via a policy change. This mirrors our null finding for structural neuroimaging in Elife.
njudd.com
As mentioned by others (Rentscher et al., AnnRev, 2020) the vast majority of this work isn't even longitudinal. It is just people cross-sectionally relating telomere length to [insert your favorite IV].

Our paper is (to my knowledge) the first natural experimental design on telomeres.
njudd.com
Lots of prior work has related longer telomeres to a host of positive lifestyle factors - with often the explicit hx that engaging in these behaviors will slow down biological aging (aka build a cognitive reserve).
njudd.com
New personal record of desk rejects 🥳

I am taking a note of journals that take over a month for the desk 📖

It is also a unusual situation where pretty much everything has been already reviewed at eLife on our Neuro paper (click for open reviews), now the sample size is just substantially larger.
Reposted by Nicholas Judd
siweiliu.bsky.social
Great post! I just read this paper by @drewhalbailey.bsky.social and colleagues that shows the RI-CLPM also performs better than CLPM when there are unmeasured time-varying confounders:

psycnet.apa.org/record/2025-...
Reposted by Nicholas Judd
krajcsi.bsky.social
Reliability paradox. It is not a paradox. osf.io/mu896_v1
OSF
osf.io
Reposted by Nicholas Judd
coolenilse.bsky.social
🚨New Preprint alert!

ANS and spatial skills are the same thing!

doi.org/10.31234/osf...

We aimed to explore how the Approximate Numbers Sense (ANS) and spatial skills related over time, but instead found that they are the same underlying construct.
OSF
doi.org
Reposted by Nicholas Judd
dandekadt.bsky.social
🚨 “Good Description” with @annagbusse.bsky.social 🚨

What sets 'good' description apart from 'mere' description?

We develop a framework for evaluating descriptive research, whether we are doing it as scholars or assessing it as readers.

Two main contributions...

🔗📄 tinyurl.com/gooddesc
good_description/good_description_ddk_agb.pdf at main · ddekadt/good_description
Homepage of "Good Description" by Daniel de Kadt & Anna Grzymala-Busse - ddekadt/good_description
tinyurl.com
Reposted by Nicholas Judd
ec.europa.eu
Choose Science. Choose Europe.

A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open.

With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond.

Apply by 10 September → europa.eu/!fBTMgF
A graphic for the Marie Skłodowska-Curie Actions (MSCA), showing a historical portrait of Marie Skłodowska-Curie overlaid with an image of four young researchers walking down a hallway. The European Commission logo is in the top left. Text reads: "Marie Skłodowska-Curie Actions – €404.3 million to support postdoctoral researchers”
Reposted by Nicholas Judd
rogierk.bsky.social
Are you an international early career scholar considering spending time in the Netherlands? We likely have capacity to host a Marie Curie Fellow if you are interested. Our lab (lifespancognitivedynamics.com) works on modeling cognitive change in early or later life, at short and long timescales.
Reposted by Nicholas Judd
dingdingpeng.the100.ci
Good question! I think in that setup just drawing the DAG (with repeated nodes) may be the starting point? The paper on outcome-wide longitudinal designs may also be helpful: content.sph.harvard.edu/wwwhsph/site... >
content.sph.harvard.edu
Reposted by Nicholas Judd
drelsje.bsky.social
Big performance differences by parental education 📊
While boys and girls scored similarly, a striking education gradient emerged:
🎓 Children of Master's-educated parents mostly scored above the mean
🧑‍🔧 Children of lower-secondary educated parents mostly scored below the mean
doi.org/10.31234/osf... 🧵
Reposted by Nicholas Judd
alelazic.bsky.social
Ran into this fantastic open access resource while doing it!

📊 Guide to Effect Sizes and Confidence Intervals dx.doi.org/10.17605/OSF...

🔗 matthewbjane.quarto.pub/guide-to-eff...
Jané, M.B., Xiao, Q., Yeung, S., Azevedo, F., Ben-Shachar, M.S., Caldwell, A.R., Cousineau, D., Dunleavy, D.J., Elsherif, M., Harlow T.J., Johnson, B., Moreau, D., Riesthuis, P., Röseler, L., Steele, J., Vieira, F.F., Zloteanu, M., & Feldman, G. (2024). Guide to Effect Sizes and Confidence Intervals.
Reposted by Nicholas Judd
readdemography.bsky.social
Question: “Does Schooling Improve Cognitive Abilities at Older Ages”? Vikesh Amin, @hanspkohler.bsky.social @jasonmfletcher.bsky.social et al. dig into the Harmonized Cognition Assessment Protocol of the HRS to examine education & cognitive aging. @SociologyatPenn read.dukeupress.edu/demography/a...