Reminder: If researchers find Cohen's d = 6, no they didn't.

trustworthy.scientific.claims/posts/if-res...

The irreproducibility tango. It is a timeless story of repeatedly asking a dance partner to dance at a dance only to have them report that they don't dance, ever.

Unfalsifiable by Design: A Year of Trying and Failing to Reproduce a Human Microbiome and Autism Study The myth of open data, reproducibility, responsibility, and accountability in science, and your role in it

How every layer of science's "self-correcting machinery" failed when Iva Veseli and I simply wanted to reproduce the findings of a high-profile study on gut microbiome and autism:

merenlab.org/2026/04/15/u...

I visit Tübingen, Germany a lot. It is rainier, darker, and just as hilly as Seattle. The place is crawling with bicycles which are well engineered, equipped for darkness and rain, and ridden by all ages. With the advent of e-bikes it is even better than ever. The car crowd lacks imagination.

If we don't talk about fight club doesn't that undermine the marketing campaign? No-one will know what to say or where the gym is...

Opinion | Don’t Use A.I. to Do This

God bless you @colsonwhitehead.com

"Do you realize how much water and power it’d take to replicate the average writer’s narcissism, self-loathing and despair? It’d drain the Indian Ocean. You could light up Times Square for a year. We can’t afford it."

The UK's Proposed "In Real Life" Study of Social Media Reduction is Scientifically Unsound. Doubling down on a research strategy known to lack validity is worse than no study at all.

The UK’s proposed study of social media reduction in kids doubles down on a failed experimental protocol & is likely to produce misleading results. It’s easy to tear apart a study post-hoc so I’m putting my marker down before the study begins: This is a bad study.

open.substack.com/pub/grimoire...

Could be an attempt to market to Americans during Thanksgiving

As part of my efforts to combat the COVID Amnesia Project, let's accurately remember what 3 influential laptop class doctors from Stanford said 6 years ago as COVID overflowed hospitals and morgues.

They won't remind you.

I will.

My latest.

Or, better yet, a Monty Python GWAS..."I fart in your general direction!"

📎New Research in European Journal of Personality
"How unusual are you?"
Read the full article: doi.org/10.1177/0890...
@aebackunims.bsky.social
#PersonalityPsychology #EJP #EAPP

Blothar The Berserker Of GWAR Explains How Independent Journalism Is The Only Force As Powerful As GWAR. Subscribe to The Onion at membership.theonion.com.

To teach in the time of ChatGPT is to know pain LLM use is the most demoralizing problem I’ve faced as a college instructor.

To teach in the time of ChatGPT is to know pain arstechnica.com/science/2026...

Oh, the humor is from the gallows...it says a lot that @talyarkoni.com left the field. Too many people are too transactional about the incentives, I suspect.

Whatever happened to the scientific incentive to find the truth or the best possible approximation, thereof?

Well, we just need to give them the proper incentives and those economists will make the rational choice...

Graph showing the proportion of clinical psychology studies that adopted four transparent research practices (preregistration and sharing of measurement instruments, data, and analysis scripts) at three time points (2012, 2018, 2024). The graph suggests adoption of these practices has increased but remains uncommon.

Graph showing the proportion of clinical psychology studies that adopted three transparent research practices (reporting guidelines and disclosure of conflicts of interest and funding) at three time points (2012, 2018, 2024). The graph suggests use of reporting guidelines has increased but remains uncommon. Conflict of interest disclosure statements have increased and are now quite common. Funding disclosure statements were relatively common across the three time points.

Has transparency improved in clinical psychology? New cross sectional study from us (Bianca Kotoulas, Justine Blackwell & me). Adoption of transparent research practices has increased between 2012, 2018, & 2024, but aside from coi and funding disclosures, they remain uncommon osf.io/preprints/ps...

born to rebel, baby, born to rebel...

I'd be more judgy of the participants if it were not for the fact that a fair number of my Ph.D. friends in the academic world still believe in birth order effects, or for that matter a fair number of fictional findings that suit their purposes. 4/

they persisted nonetheless. This was usually aided and abetted by a science teacher who by reading intro psych text books had come to the firm belief that birth order was a thing and therefore countered my arguments. I guess their experience of the null effect was good? 3/

the proper guidance. In the few cases where they were intent on running a study, I told them repeatedly that they wouldn't be able to detect the .03 effect size in a sample of 100 friends. Largely because they didn't really believe our findings or understand what an effect size was 2/

Meh. The undergrad and grad students never come to my office hours (I'm scary?). I can spare a few hours to talk to a high school student, especially if they are interested in research. The slippage happens when they actually want to conduct a study. They typically don't have the resources, or 1/

Weren't you just out of high school when you did your birth order project?

I think the AP stuff is fine as well as doing college-level courses. After all, much of our material is easily consumed by high school students. It is the prospect of conducting their own research project that is new and potentially problematic.

They want to do the neuroscience of psychopathology??? If we only had a portable fMRI machine...

A McDonald’s where the sign has been reduced to McDo.

There is no McTry.

Relatedly, I'm now contacted about 4 times a year by high school students doing research projects on birth order. It seems the arms race to do research is now shifting earlier and earlier. And, like always, the easy targets like birth order are the first choice of AP Psychology courses.

Offering scientists cash to spot errors in published papers doesn’t work The ERROR project tried enticing reviewers with payments. Now, it’s launching a journal—and promising papers as rewards

The ERROR project recruits independent experts to recheck social sciences papers’ data, statistics, methodology, code; now the project plans to publish the reviews in a new peer-reviewed journal.
science.org/content/arti...
@dalmeet.bsky.social @science.org
#reproducibility

An exasperated Jason Collins bangs the drum he’s been beating for 10 years over a pure zombie study.

The original research suggesting a little disfluency in communication stimulates more analytical reasoning is a spectacular replication failure:

buff.ly/VxIUvYr

Direction of effect and success of publcation: a randomized study has really been done already!
Thanks to @floriannaudet.bsky.social for pointing it out
jamanetwork.com/journals/jam...