Constantin Yves Plessen

What are some articles, blogposts, essays, etc. that you still think about over a year later?

Here are a few of mine:

Accessibility and public availability of treatment protocols and manuals for evidence-based psychological interventions for severe mental disorders: A survey of randomized trials Background: Psychological interventions are developed and tested as packages of multiple components. Identifying active ingredients requires access to detailed intervention descriptions, such as from ...

Yes, I am one of those horrible people who submit during the season. New preprint, 1st paper from my #ERCStG DECOMPOSE
www.medrxiv.org/content/10.1...
The goals of DECOMPOSE are break-down psychological interventions into components, integrate these in a taxonomy and evaluate incremental efficacy

HOW MUCH SCIENCE IS FAKE? Hosted on the Open Science Framework

I am seeing this paper cited everywhere, @sciencenews.bsky.social @naturenews.bsky.social conferences, soon policy papers
osf.io/5rf2m/
First, what is the method of this paper? Systematic review? Scoping review? Overview of reviews? Narrative review? Or none was adequate?

JBI, Cochrane and Campbell Collaboration are partnering to co-facilitate an initiative, Building a Global Evidence Synthesis Community. We are calling for expressions of interest to join us as we seize a once-in-a-generation opportunity for a global step change in #EvidenceSynthesis synthesis. 🧵1/

This is not a hypothetical question in my case, and I am only slightly embarrassed 😂

Figure 1 from BMJ Mental Health paper, showing AI generated images for different mental disorders.

Stigmatising and inaccurate portrayals of mental disorders:

Researchers asked generative AI models to depict different disorders.

Images reflected historical biases & pop-culture references rather than evidence-based clinical representation of these conditions

mentalhealth.bmj.com/content/27/1...

Thank you!

Starting my job search: I just finished my PhD in Clinical Psychology and am looking for opportunities to make an impact.

I have expertise in meta-analyses, advanced stats, psychometrics, R, and project management.

If you know of a position that might be a great fit, please feel free to reach out.

REED: Do a DAG Before You Do a Specification Curve Analysis My previous two blogs focused on how to do a specification curve analysis (SCA) using the R package “specr” (here) and the Stata program “speccurve” (here). Both blogs provided line-by-line explana…

Do a DAG Before You Do a Specification Curve Analysis #CausalSky #Stats
replicationnetwork.com/2024/11/18/r... With an example of reducing >1,200 specifications to 6. Computational power should not replace theoretical thinking and model building. 1/

TIL blue zones of longevity are not real:

“Newman’s main argument is that a significant proportion of supposed centenarians may simply not exist. His research shows that around 1900, when the U.S. started to issue birth certificates, the number of centenarians aged 110 or older dropped sharply…”

2/ They even describe it on Pubpeer: “This symbolic document provides an examination of medical malpractice within the field of neurosurgery, utilizing fictional scenarios that draw inspiration from actual cases frequently encountered in this specialty.”

1/ Put away your pitchforks—I actually enjoyed the paper. It’s a clever fable set in space, exploring “the various difficulties that impact surgical outcomes.” It creatively contrasts patient-centered, evidence-based medicine with current practices (and future ones on Saturn).

Ever since a reviewer took the time to feedback my R code, highlighted steps that were hard to follow, and reran my analyses on their computer, I do the same when reviewing.

In general: seeing the supplement as an integral part of the paper and not as an afterthought!

How to deal with conflicting claims from multiple meta-analyses on the same topic?

Especially regarding: publication bias, state-of-the-art methods—should we apply all or only some corrections?

And what evidential value do meta-analyses of only high-risk-of-bias studies hold?

Just wanted to let everyone know that the one and only Pim Cuijpers and Toshi Furukawa are now on Bluesky as well! :)

@pimcuijpers.bsky.social
@toshi-frkw.bsky.social

#PsychSciSky #psychiatry #statssky #psychsky

Updated -largely no exhaustive- list : go.bsky.app/R8RNJgc
Please reply to be added.

A largely non exhaustive pack for meta research and open science. Please circulate it ;)

go.bsky.app/R8RNJgc

Spoiler: Incredibly sad and weirdly funny:

“The optimistic point is, in the long arc of things, we’ll self-correct, even if we have no incentive to retract or take responsibility.”

“Do you believe that?” I asked.

“On my optimistic days, I believe it.”

“Is today an optimistic day?”

“Not really.”

Our findings confirm that digital interventions can overall help, but outcomes also depend on the design, population, and context.

Most included primary studies had a low quality according to Cochran’s Risk of bias tool 2. Smaller effects appeared when adjusting for publication bias and at follow-ups after 24 weeks.

This highlights the need for higher-quality trials and more focus on sustaining long-term benefits.

Digital mental health interventions for the treatment of depression: A multiverse meta-analysis The varying sizes of effects in published meta-analyses on digital interventions for depression prompt questions about their efficacy.A systematic sea…

Are digital interventions for depression effective?

We ran 3,638 meta-analyses on 125 RCTs (32,733 participants) to find out.

Effect sizes ranged from small to medium (Hedges’ g = 0.16–0.74), with guided interventions & LMICs showing greater benefits.

www.sciencedirect.com/science/arti...

Are causes of mental disorders in the person or in the environment? » Eiko Fried Brief summary of our new paper on the personal-internal reification of p-factor causes with Merlijn Olthof and Anna Lichtwarck-Aschoff

Blog on our new JoPACS viewpoint led by @molthof.bsky.social, highlighting problems of ignoring socio-environmental causes for psychopathology, using the example of the p-factor for which all dominant theories position liability *within* the person.

eiko-fried.com/causes-of-me...

Graphic shows dramatic reduction in polio, rubella, mumps, measles, and hepatitis A cases after the introduction of vaccines for each disease.

Disease prevalence in US states before & after vaccine introduction

Graphic from Edward Tufte
More graphics.wsj.com/infectious-d... 🧪

Are there any Meta-Science / Open Science starter packs? Maybe @forrt.bsky.social or @psysciacc.bsky.social know?

Chaotic good

go.bsky.app/Qk9PfFw

11/n

Really enjoy @bsky.app so far, feels like pre-Elmo academic twitter.

Currently using @en.blueark.app to import my tweets from Twitter!

The Onion should buy Elsevier next

go.bsky.app/SgoBT7Z

10/n

go.bsky.app/JFgppAm

9/n