Solomon Kurz
@solomonkurz.bsky.social
Clinical psychology researcher | applied statistics geek | so called #RStats influencer
Reposted by Solomon Kurz
A colleague is looking for an open-source/online (pref. peer-reviewed) reference for properties of probability distributions. Any ideas? (NIST gives *very* basic properties e.g. www.itl.nist.gov/div898/handb... but I think they're looking for something more complete ...)
November 25, 2025 at 3:17 PM
A colleague is looking for an open-source/online (pref. peer-reviewed) reference for properties of probability distributions. Any ideas? (NIST gives *very* basic properties e.g. www.itl.nist.gov/div898/handb... but I think they're looking for something more complete ...)
Reposted by Solomon Kurz
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...
Here's a nice guide for performing open systematic reviews doi.org/10.1525/coll...
November 24, 2025 at 12:10 PM
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...
Here's a nice guide for performing open systematic reviews doi.org/10.1525/coll...
For those who don't have access to a smoker, the spatchcock method can help you cook your turkey faster and more evenly (no dried out breast). Here's Kenji showing you how with a chicken, and I can confirm it also works well with turkey. youtu.be/yUcZqyGrWYw?...
November 23, 2025 at 11:53 PM
For those who don't have access to a smoker, the spatchcock method can help you cook your turkey faster and more evenly (no dried out breast). Here's Kenji showing you how with a chicken, and I can confirm it also works well with turkey. youtu.be/yUcZqyGrWYw?...
Reposted by Solomon Kurz
Sasha Gusev declares case closed by comparing studies that assessed different traits using different measurement methods in different countries at different times with different estimands for heritability, ignoring the denominator (total variance).
Academics who disagree are "overly cautious"
Academics who disagree are "overly cautious"
I wrote a little bit about the "missing heritability" question and several recent studies that have brought it to a close. A short 🧵
The missing heritability question is now (mostly) answered
Not with a bang but with a whimper
theinfinitesimal.substack.com
November 23, 2025 at 2:01 PM
Sasha Gusev declares case closed by comparing studies that assessed different traits using different measurement methods in different countries at different times with different estimands for heritability, ignoring the denominator (total variance).
Academics who disagree are "overly cautious"
Academics who disagree are "overly cautious"
Reposted by Solomon Kurz
Springer Nature flags paper with fabricated reference to article (not) written by our cofounder
Springer Nature flags paper with fabricated reference to article (not) written by our cofounder
Tips we get about papers and books citing fake references have skyrocketed this year, tracking closely with the rise of ChatGPT and other generative large language models. One in particular hit clo…
retractionwatch.com
November 21, 2025 at 6:31 PM
Springer Nature flags paper with fabricated reference to article (not) written by our cofounder
If you compute an effect size (say a Cohen's d type standardized mean difference) several different ways and then selectively report the largest one, what would you call that?
p-hacking
research misconduct
fraud
something else?
p-hacking
research misconduct
fraud
something else?
November 20, 2025 at 2:48 PM
If you compute an effect size (say a Cohen's d type standardized mean difference) several different ways and then selectively report the largest one, what would you call that?
p-hacking
research misconduct
fraud
something else?
p-hacking
research misconduct
fraud
something else?
Reposted by Solomon Kurz
🚧 OSF experienced a temporary slowdown today due to a surge of automated bot traffic. This overwhelmed parts of the production environment that didn't yet have the right safeguards in place, causing performance issues. The underlying issue has been addressed, & further protections are now in place.
November 19, 2025 at 4:00 PM
🚧 OSF experienced a temporary slowdown today due to a surge of automated bot traffic. This overwhelmed parts of the production environment that didn't yet have the right safeguards in place, causing performance issues. The underlying issue has been addressed, & further protections are now in place.
Reposted by Solomon Kurz
Over the last few weeks, the weight of the world has really been getting to me and I’ve found it hard to get motivated to write any articles.
But today I'm ripping off the bandaid. With a post about ripping off bandaids. Enjoy!
open.substack.com/pub/epiellie...
But today I'm ripping off the bandaid. With a post about ripping off bandaids. Enjoy!
open.substack.com/pub/epiellie...
When you're ripping off a bandaid, do it quick!
Over the last few weeks, the weight of the world has really been getting to me and I’ve found it hard to get motivated to write any articles. But today I'm ripping off the bandaid. With a post about r...
open.substack.com
November 18, 2025 at 4:03 PM
Over the last few weeks, the weight of the world has really been getting to me and I’ve found it hard to get motivated to write any articles.
But today I'm ripping off the bandaid. With a post about ripping off bandaids. Enjoy!
open.substack.com/pub/epiellie...
But today I'm ripping off the bandaid. With a post about ripping off bandaids. Enjoy!
open.substack.com/pub/epiellie...
Reposted by Solomon Kurz
#30DayMapChallenge #30DayMapChallenge2025 #30DayMapChallengeRbanism #30DayMapChallengeR
Day 18: Out Of This World
Render a 3D map of Olympus Mons on Mars using elevation data
by Ignacio Urria Yáñez.
#GeoData #rstats #DataViz #Maps #SpatialViz
Day 18: Out Of This World
Render a 3D map of Olympus Mons on Mars using elevation data
by Ignacio Urria Yáñez.
#GeoData #rstats #DataViz #Maps #SpatialViz
November 18, 2025 at 12:26 PM
#30DayMapChallenge #30DayMapChallenge2025 #30DayMapChallengeRbanism #30DayMapChallengeR
Day 18: Out Of This World
Render a 3D map of Olympus Mons on Mars using elevation data
by Ignacio Urria Yáñez.
#GeoData #rstats #DataViz #Maps #SpatialViz
Day 18: Out Of This World
Render a 3D map of Olympus Mons on Mars using elevation data
by Ignacio Urria Yáñez.
#GeoData #rstats #DataViz #Maps #SpatialViz
This is another example of why I think default priors are generally inappropriate for professional work. They're still great for teaching, though.
The default prior for the intercept in both {rstanarm} and {brms} are very wide.
Counterintuitively - being on the logit scale, this is actually translates to a **strong** prior that p(y=1) is near 1 or near 0.
Always check your priors!
#rstats
Counterintuitively - being on the logit scale, this is actually translates to a **strong** prior that p(y=1) is near 1 or near 0.
Always check your priors!
#rstats
November 18, 2025 at 3:44 PM
This is another example of why I think default priors are generally inappropriate for professional work. They're still great for teaching, though.
Reposted by Solomon Kurz
The default prior for the intercept in both {rstanarm} and {brms} are very wide.
Counterintuitively - being on the logit scale, this is actually translates to a **strong** prior that p(y=1) is near 1 or near 0.
Always check your priors!
#rstats
Counterintuitively - being on the logit scale, this is actually translates to a **strong** prior that p(y=1) is near 1 or near 0.
Always check your priors!
#rstats
November 18, 2025 at 2:01 PM
The default prior for the intercept in both {rstanarm} and {brms} are very wide.
Counterintuitively - being on the logit scale, this is actually translates to a **strong** prior that p(y=1) is near 1 or near 0.
Always check your priors!
#rstats
Counterintuitively - being on the logit scale, this is actually translates to a **strong** prior that p(y=1) is near 1 or near 0.
Always check your priors!
#rstats
I grew up with that beauty in my backyard
#30DayMapsChallenge
Day 17: A new tool
Played around with #rayshader to look at Mont Rainier (Washington).
Day 17: A new tool
Played around with #rayshader to look at Mont Rainier (Washington).
November 18, 2025 at 1:21 AM
I grew up with that beauty in my backyard
Reposted by Solomon Kurz
Our experimental study on the effects of negative mood and alcohol intoxication on reinforcement learning in the Iowa Gambling Task is now published OA in Judgment and Decision Making: doi.org/10.1017/jdm.... as always, anonymized data, materials, and code can be found on the OSF: osf.io/ky3aj/
November 17, 2025 at 4:13 PM
Our experimental study on the effects of negative mood and alcohol intoxication on reinforcement learning in the Iowa Gambling Task is now published OA in Judgment and Decision Making: doi.org/10.1017/jdm.... as always, anonymized data, materials, and code can be found on the OSF: osf.io/ky3aj/
Reposted by Solomon Kurz
A paper critiquing post-publication peer review has numerous made-up references, including a @nature.com article falsely attributed to our Ivan Oransky.
link.springer.com/article/10.1...
link.springer.com/article/10.1...
PubPeer - An expert criticism on post-publication peer review platform...
There are comments on PubPeer for publication: An expert criticism on post-publication peer review platforms: the case of pubpeer (2025)
pubpeer.com
November 16, 2025 at 9:11 AM
A paper critiquing post-publication peer review has numerous made-up references, including a @nature.com article falsely attributed to our Ivan Oransky.
link.springer.com/article/10.1...
link.springer.com/article/10.1...
Reposted by Solomon Kurz
Time once again to be linking to @cghlewis.bsky.social when I do my winter class that involves data analysis
November 15, 2025 at 5:12 PM
Time once again to be linking to @cghlewis.bsky.social when I do my winter class that involves data analysis
Reposted by Solomon Kurz
🚀 New paper (open access) out in Cognitive Therapy & Research: we (@herzog.bsky.social, @evalottabrakemeier.bsky.social, @hudsongolino.bsky.social and me) ask whether group‑level symptom‑change networks in CBT actually capture what happens inside each patient. #Psychology #CBT
Must We Always Go Idiographic? - Cognitive Therapy and Research
Purpose While psychological change processes are increasingly assumed to be “non-ergodic”, prompting a shift toward idiographic approaches, the assumption of ergodicity is often accepted a priori rath...
link.springer.com
November 11, 2025 at 9:11 AM
🚀 New paper (open access) out in Cognitive Therapy & Research: we (@herzog.bsky.social, @evalottabrakemeier.bsky.social, @hudsongolino.bsky.social and me) ask whether group‑level symptom‑change networks in CBT actually capture what happens inside each patient. #Psychology #CBT
Reposted by Solomon Kurz
Pretty cool is an understatement.
There is 1.5 million hours of video game play recorded, via telemetry data! This is a very cool study🎮
There is 1.5 million hours of video game play recorded, via telemetry data! This is a very cool study🎮
We released a pretty cool dataset/preprint today looking at video game play, cognition, time-use and a ton of self-reported psych measures at osf.io/preprints/ps... with @nballou.bsky.social @matti.vuorre.com @thomashakman.bsky.social @rpsychologist.com and @shuhbillskee.bsky.social RRs coming soon
November 14, 2025 at 5:02 PM
Pretty cool is an understatement.
There is 1.5 million hours of video game play recorded, via telemetry data! This is a very cool study🎮
There is 1.5 million hours of video game play recorded, via telemetry data! This is a very cool study🎮
Trust was not among the things for which I got into science. Trust no one.
Anyway. Trust no one.
November 14, 2025 at 3:09 AM
Trust was not among the things for which I got into science. Trust no one.
Reposted by Solomon Kurz
I should probably explain this, with context.
Over several years we have caught MANY researchers playing silly buggers with artificial cutoffs designed to engineer group differences.
(No one more so than the Vitamin D weirdos. One of the least reliable and most annoying areas of health research.)
Over several years we have caught MANY researchers playing silly buggers with artificial cutoffs designed to engineer group differences.
(No one more so than the Vitamin D weirdos. One of the least reliable and most annoying areas of health research.)
November 14, 2025 at 2:23 AM
I should probably explain this, with context.
Over several years we have caught MANY researchers playing silly buggers with artificial cutoffs designed to engineer group differences.
(No one more so than the Vitamin D weirdos. One of the least reliable and most annoying areas of health research.)
Over several years we have caught MANY researchers playing silly buggers with artificial cutoffs designed to engineer group differences.
(No one more so than the Vitamin D weirdos. One of the least reliable and most annoying areas of health research.)
Reposted by Solomon Kurz
@bmj.com has issued an expression of concern for a paper claiming stem cell therapy can reduce the risk of heart failure. The move comes after sleuths and scientists critiqued the “complete mismatch” between the study data and the article itself.
BMJ places expression of concern on heavily criticized stem cell paper
The BMJ has issued an expression of concern for a paper claiming stem cell therapy can reduce the risk of heart failure. The move comes after sleuths and scientists critiqued the “complete mismatch…
retractionwatch.com
November 12, 2025 at 9:33 PM
@bmj.com has issued an expression of concern for a paper claiming stem cell therapy can reduce the risk of heart failure. The move comes after sleuths and scientists critiqued the “complete mismatch” between the study data and the article itself.
Reposted by Solomon Kurz
Hey alcohol research folks, is anyone still looking for symposium speakers for RSA? I have some EMA data on rural young adults that I’d love to present but I don’t think I have bandwidth to also organize. Hit me up if you want to hear more!
November 12, 2025 at 4:11 PM
Hey alcohol research folks, is anyone still looking for symposium speakers for RSA? I have some EMA data on rural young adults that I’d love to present but I don’t think I have bandwidth to also organize. Hit me up if you want to hear more!
Reposted by Solomon Kurz
Well now I'm pondering - what is the best Introductory Biostats book out there that folk have had success with. I used to like Whitlock & Schluter, but have come to find it too test-based and not enough thinking-based (to use a term of art?).
False. There is no such thing as an introductory statistics textbook
What intro stats textbook to use?
statmodeling.stat.columbia.edu/2025/11/09/w...
statmodeling.stat.columbia.edu/2025/11/09/w...
November 11, 2025 at 3:59 PM
Well now I'm pondering - what is the best Introductory Biostats book out there that folk have had success with. I used to like Whitlock & Schluter, but have come to find it too test-based and not enough thinking-based (to use a term of art?).
Two-group pre/post data are deceptively simple, and you could analyze them in many different ways, depending on your goals. Here are three blog posts on the topic:
solomonkurz.netlify.app/blog/2022-06...
solomonkurz.netlify.app/blog/2020-12...
solomonkurz.netlify.app/blog/2023-06...
solomonkurz.netlify.app/blog/2022-06...
solomonkurz.netlify.app/blog/2020-12...
solomonkurz.netlify.app/blog/2023-06...
November 10, 2025 at 7:19 PM
Two-group pre/post data are deceptively simple, and you could analyze them in many different ways, depending on your goals. Here are three blog posts on the topic:
solomonkurz.netlify.app/blog/2022-06...
solomonkurz.netlify.app/blog/2020-12...
solomonkurz.netlify.app/blog/2023-06...
solomonkurz.netlify.app/blog/2022-06...
solomonkurz.netlify.app/blog/2020-12...
solomonkurz.netlify.app/blog/2023-06...
Reposted by Solomon Kurz
Peer reviewers-I’m curious, why do you track your reviews with web of science?
November 10, 2025 at 3:39 PM
Peer reviewers-I’m curious, why do you track your reviews with web of science?
Reposted by Solomon Kurz
This one surely has something on offer for every one: In this cross-sectional mediation analysis, the "effects" of soft drink consumption on depression were "mediated" by abundance of Eggerthela in the gut microbiome.
This was sent to me via dm and now you all got to suffer as well.
This was sent to me via dm and now you all got to suffer as well.
Soft Drink Consumption and Depression Mediated by Gut Microbiome Alterations
This cohort study examines the association between soft drink consumption and major depressive disorder diagnosis and severity and whether this association is mediated by changes in the gut microbiota...
jamanetwork.com
November 9, 2025 at 7:19 AM
This one surely has something on offer for every one: In this cross-sectional mediation analysis, the "effects" of soft drink consumption on depression were "mediated" by abundance of Eggerthela in the gut microbiome.
This was sent to me via dm and now you all got to suffer as well.
This was sent to me via dm and now you all got to suffer as well.