Katherine Jonas PhD LP
@kgjonas.bsky.social
Assistant Prof at Stony Brook Psychiatry
{Molecular, Psychopathology, Statistic, Nosology} choose 2
Lab webpage: jonaslab.festyland.org
{Molecular, Psychopathology, Statistic, Nosology} choose 2
Lab webpage: jonaslab.festyland.org
Reposted by Katherine Jonas PhD LP
Enroll in my new workshop to realize your dream of learning IRT
#quantpsych #psychometrics #psychsky #statssky
#quantpsych #psychometrics #psychsky #statssky
Foundations of Item Response Theory
This workshop from Wes Bonifay focuses on the foundations and application of item response theory, particularly as applied to binary items.
centerstat.org
January 14, 2026 at 5:51 PM
Enroll in my new workshop to realize your dream of learning IRT
#quantpsych #psychometrics #psychsky #statssky
#quantpsych #psychometrics #psychsky #statssky
'Tis the season (for collider bias)! Check out Michel's very nice simulation and explanation of why you shouldn't pull your kid out of varsity chess club just yet.
This smells distinctly like collider bias and/or selection bias and/or regression to the mean... You simply can't select teen prodigies, and world class athletes rom databases, and go run regressions without serious consideration of the selection process!
"Most top achievers (Nobel laureates and world-class musicians, athletes, chess players) demonstrated lower performance than many peers during their early years. Across the highest adult performance, peak performance is negatively correlated with early performance" www.science.org/doi/10.1126/...
December 21, 2025 at 12:00 PM
'Tis the season (for collider bias)! Check out Michel's very nice simulation and explanation of why you shouldn't pull your kid out of varsity chess club just yet.
And if you're interested in this kind of work and looking for a postdoc position, we are hiring! Please see the ad on my website, linked from my bio.
Have you wondered why higher bipolar polygenic scores (BP PGS) seem to predict better outcomes among people with psychosis? Here’s why (1/6) 🧪#PsychSciSky
#ThisWeekInNPP
Inconsistent clinical associations of bipolar disorder (BP) polygenic risk score (PRS) largely reflect collider bias from case- & treatment-based sampling, which distorts correlations between scores & alters BP-PRS links to outcomes 🧠🧬 / @kgjonas.bsky.social
Inconsistent clinical associations of bipolar disorder (BP) polygenic risk score (PRS) largely reflect collider bias from case- & treatment-based sampling, which distorts correlations between scores & alters BP-PRS links to outcomes 🧠🧬 / @kgjonas.bsky.social
December 18, 2025 at 7:51 PM
And if you're interested in this kind of work and looking for a postdoc position, we are hiring! Please see the ad on my website, linked from my bio.
Have you wondered why higher bipolar polygenic scores (BP PGS) seem to predict better outcomes among people with psychosis? Here’s why (1/6) 🧪#PsychSciSky
#ThisWeekInNPP
Inconsistent clinical associations of bipolar disorder (BP) polygenic risk score (PRS) largely reflect collider bias from case- & treatment-based sampling, which distorts correlations between scores & alters BP-PRS links to outcomes 🧠🧬 / @kgjonas.bsky.social
Inconsistent clinical associations of bipolar disorder (BP) polygenic risk score (PRS) largely reflect collider bias from case- & treatment-based sampling, which distorts correlations between scores & alters BP-PRS links to outcomes 🧠🧬 / @kgjonas.bsky.social
The impact of collider bias on genetic prediction in psychotic disorders - Neuropsychopharmacology
Neuropsychopharmacology - The impact of collider bias on genetic prediction in psychotic disorders
www.nature.com
December 18, 2025 at 7:50 PM
Have you wondered why higher bipolar polygenic scores (BP PGS) seem to predict better outcomes among people with psychosis? Here’s why (1/6) 🧪#PsychSciSky
CDG3 is out, with better-than-ever resolution of the genetic structure of psychiatric disorders.
1/4 Thrilled to be sharing new work published today in Nature describing the third wave of results from the PGC Cross-Disorder Group. This reflects a massive group effort to examine shared and unique genetic signal across >1 million cases for 14 psychiatric disorders. www.nature.com/articles/s41...
Mapping the genetic landscape across 14 psychiatric disorders - Nature
Genomic analyses applied to 14 childhood- and adult-onset psychiatric disorders identifies five underlying genomic factors that explain the majority of the genetic variance of the individual disorders...
www.nature.com
December 10, 2025 at 5:34 PM
CDG3 is out, with better-than-ever resolution of the genetic structure of psychiatric disorders.
Reposted by Katherine Jonas PhD LP
Congratulations to everyone elected to our Society's 2026 Executive Committee!
President: Miri Forbes
President-Elect: Chris Conway
Secretary: Kelsie Forbush
Treasurer: Len Simms
Trainee Engagement Chair: Caroline Balling
Membership Chair: Holly Levin-Aspenson
Conference Chair: Martin Sellbom
President: Miri Forbes
President-Elect: Chris Conway
Secretary: Kelsie Forbush
Treasurer: Len Simms
Trainee Engagement Chair: Caroline Balling
Membership Chair: Holly Levin-Aspenson
Conference Chair: Martin Sellbom
November 24, 2025 at 9:25 PM
Congratulations to everyone elected to our Society's 2026 Executive Committee!
President: Miri Forbes
President-Elect: Chris Conway
Secretary: Kelsie Forbush
Treasurer: Len Simms
Trainee Engagement Chair: Caroline Balling
Membership Chair: Holly Levin-Aspenson
Conference Chair: Martin Sellbom
President: Miri Forbes
President-Elect: Chris Conway
Secretary: Kelsie Forbush
Treasurer: Len Simms
Trainee Engagement Chair: Caroline Balling
Membership Chair: Holly Levin-Aspenson
Conference Chair: Martin Sellbom
Reposted by Katherine Jonas PhD LP
Six of the nine Nobel Prize winners this year work in the U.S.
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
The official website of the Nobel Prize - NobelPrize.org
The Nobel Prize rewards science, humanism and peace efforts. This is one of the central concepts in the will of Alfred Nobel, and it also permeates the outreach activities that have been developed for...
www.nobelprize.org
October 8, 2025 at 12:37 PM
Six of the nine Nobel Prize winners this year work in the U.S.
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
Reposted by Katherine Jonas PhD LP
New York Times story with profiles of researchers whose grants were terminated.
[Gift Link]
www.nytimes.com/2025/08/24/o...
[Gift Link]
www.nytimes.com/2025/08/24/o...
Opinion | America First? Not When It Comes to Your Health.
www.nytimes.com
August 24, 2025 at 1:08 PM
New York Times story with profiles of researchers whose grants were terminated.
[Gift Link]
www.nytimes.com/2025/08/24/o...
[Gift Link]
www.nytimes.com/2025/08/24/o...
Oh, I've been hitting the imaginary brake pedal since Spring.
August 20, 2025 at 3:46 PM
Oh, I've been hitting the imaginary brake pedal since Spring.
Reposted by Katherine Jonas PhD LP
If you burn down a forest, you don't miss out on lumber for just that season. You have to replant all the trees, nurture them, and wait for them to grow.
The science and research budget cuts happening now are wanton, senseless arson. Recovery, if it ever happens, will take generations.
The science and research budget cuts happening now are wanton, senseless arson. Recovery, if it ever happens, will take generations.
June 3, 2025 at 9:02 PM
If you burn down a forest, you don't miss out on lumber for just that season. You have to replant all the trees, nurture them, and wait for them to grow.
The science and research budget cuts happening now are wanton, senseless arson. Recovery, if it ever happens, will take generations.
The science and research budget cuts happening now are wanton, senseless arson. Recovery, if it ever happens, will take generations.
Reposted by Katherine Jonas PhD LP
Extremely excited to share the first effort of the Revived Genomics of Personality Consortium: A highly-powered, comprehensive GWAS of the Big Five personality traits in 1.14 million participants from 46 cohorts. www.biorxiv.org/content/10.1...
May 20, 2025 at 10:14 AM
Extremely excited to share the first effort of the Revived Genomics of Personality Consortium: A highly-powered, comprehensive GWAS of the Big Five personality traits in 1.14 million participants from 46 cohorts. www.biorxiv.org/content/10.1...
Reposted by Katherine Jonas PhD LP
The Impoundment Crisis is alive and well. An anonymous NIH staffer explained to @donmoyn.bsky.social how Trump's team has used the federal register to disappear "study sections" that would have approved grants THAT WOULD HAVE BE GOING OUT RIGHT NOW. donmoynihan.substack.com/p/the-nih-bu...
The NIH budget is on a fast track to disaster
An NIH insider explains what Republicans are likely to do next, and what we can do
donmoynihan.substack.com
April 29, 2025 at 1:07 PM
The Impoundment Crisis is alive and well. An anonymous NIH staffer explained to @donmoyn.bsky.social how Trump's team has used the federal register to disappear "study sections" that would have approved grants THAT WOULD HAVE BE GOING OUT RIGHT NOW. donmoynihan.substack.com/p/the-nih-bu...
Reposted by Katherine Jonas PhD LP
I am really grateful to be part of the Latin American Genomics Consortium (LAGC) and excited that this paper is out in the world! Check it out! #pubs
📃 I am excited to share our @naturegenet.bsky.social review paper on the state of psychiatric genetics in Latin America, put forth by the Latin American Genomics Consortium (LAGC)! 🎉
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Psychiatric genetics in the diverse landscape of Latin American populations - Nature Genetics
Latin America and the Caribbean remain largely underrepresented in psychiatric genetics research. This Review highlights the need for more research in these populations to advance genetic insights and...
www.nature.com
April 9, 2025 at 5:15 PM
I am really grateful to be part of the Latin American Genomics Consortium (LAGC) and excited that this paper is out in the world! Check it out! #pubs
Reposted by Katherine Jonas PhD LP
Thought-provoking symposium on treatment resistance, short-comings of its definitions & of treatment practice @ #SIRS2025 @sirsofficial.bsky.social w/Ingrid Melle & @kgjonas.bsky.social (chairs), Sherry KW Chan, Jose Rubio, Oliver Howes - and my wonderful colleague @kristinwold.bsky.social (here👇)
April 1, 2025 at 8:49 PM
Thought-provoking symposium on treatment resistance, short-comings of its definitions & of treatment practice @ #SIRS2025 @sirsofficial.bsky.social w/Ingrid Melle & @kgjonas.bsky.social (chairs), Sherry KW Chan, Jose Rubio, Oliver Howes - and my wonderful colleague @kristinwold.bsky.social (here👇)
Reposted by Katherine Jonas PhD LP
If no single piece of the original ship remains in the current ship, is the ship still the Ship of Theseus?
And if one percent of all my body's cells get replaced every single day, is it really me who, two months ago, accepted your review request?
And if one percent of all my body's cells get replaced every single day, is it really me who, two months ago, accepted your review request?
March 20, 2025 at 6:00 AM
If no single piece of the original ship remains in the current ship, is the ship still the Ship of Theseus?
And if one percent of all my body's cells get replaced every single day, is it really me who, two months ago, accepted your review request?
And if one percent of all my body's cells get replaced every single day, is it really me who, two months ago, accepted your review request?
Reposted by Katherine Jonas PhD LP
A preliminary brief version of the HiTOP self-report measure (“B-HiTOP”) is now available on our website: www.hitop-system.org/measurement-...
1/2
1/2
Measurement of the Hierarchical Taxonomy of Psychopathology (HiTOP)
Information about HiTOP self-report measures, including HiTOP-PRO, the harmful substance use module, and B-HiTOP
www.hitop-system.org
February 25, 2025 at 11:14 AM
A preliminary brief version of the HiTOP self-report measure (“B-HiTOP”) is now available on our website: www.hitop-system.org/measurement-...
1/2
1/2
I'll be in DC!! Squabble up scientists!
WHERE WILL YOU BE ON MARCH 7TH!?
Head to www.standupforscience2025.org/local-event-information/ or the link in our bio to find your closest event—or add one if you're hosting one!
#standupforscience2025
Head to www.standupforscience2025.org/local-event-information/ or the link in our bio to find your closest event—or add one if you're hosting one!
#standupforscience2025
March 3, 2025 at 6:02 PM
I'll be in DC!! Squabble up scientists!
Reposted by Katherine Jonas PhD LP
The institution of American science is on the front lines in the fight against fascism.
This is more than just indirect cost caps.
On March 7th, we stand for the freedom of thought, the power of knowledge, and, ultimately, democracy.
#standupforscience2025 #scienceforall
Please share widely!
This is more than just indirect cost caps.
On March 7th, we stand for the freedom of thought, the power of knowledge, and, ultimately, democracy.
#standupforscience2025 #scienceforall
Please share widely!
WHERE WILL YOU BE ON MARCH 7TH!?
Head to www.standupforscience2025.org/local-event-information/ or the link in our bio to find your closest event—or add one if you're hosting one!
#standupforscience2025
Head to www.standupforscience2025.org/local-event-information/ or the link in our bio to find your closest event—or add one if you're hosting one!
#standupforscience2025
March 2, 2025 at 12:25 PM
The institution of American science is on the front lines in the fight against fascism.
This is more than just indirect cost caps.
On March 7th, we stand for the freedom of thought, the power of knowledge, and, ultimately, democracy.
#standupforscience2025 #scienceforall
Please share widely!
This is more than just indirect cost caps.
On March 7th, we stand for the freedom of thought, the power of knowledge, and, ultimately, democracy.
#standupforscience2025 #scienceforall
Please share widely!
Reposted by Katherine Jonas PhD LP
If you don’t have your plans to attend @standupforscience.bsky.social, now is the time to make them! Take the biggest action possible: go to DC, your local rally, plan a walk out, DONATE.
With sincerity, I’m glad to be organizing KY. And it’s garbage that we have to.
#ScienceForAll
With sincerity, I’m glad to be organizing KY. And it’s garbage that we have to.
#ScienceForAll
February 26, 2025 at 2:16 PM
If you don’t have your plans to attend @standupforscience.bsky.social, now is the time to make them! Take the biggest action possible: go to DC, your local rally, plan a walk out, DONATE.
With sincerity, I’m glad to be organizing KY. And it’s garbage that we have to.
#ScienceForAll
With sincerity, I’m glad to be organizing KY. And it’s garbage that we have to.
#ScienceForAll
Reposted by Katherine Jonas PhD LP
Hiring a full time post-bacc staff person for the THRIVE Lab at Iowa. Please apply and pass along to those who may be interested! jobs.uiowa.edu/research/vie...
Research Requisition Details - Jobs@UIOWA: Search and Apply for Jobs at The University of IowaUniversity of IowaUniversity of Iowa
Jobs@UIOWA: The official place to search and apply for jobs at The University of Iowa.
jobs.uiowa.edu
February 24, 2025 at 10:01 PM
Hiring a full time post-bacc staff person for the THRIVE Lab at Iowa. Please apply and pass along to those who may be interested! jobs.uiowa.edu/research/vie...
Reposted by Katherine Jonas PhD LP
Scientists are now organizing events, called Stand Up for Science, on 7 March in Washington, D.C., and state capitals.
So far, they have attracted more than 100 volunteers from some 30 states who are hoping to rally support for research as a public good. scim.ag/4328LAD
So far, they have attracted more than 100 volunteers from some 30 states who are hoping to rally support for research as a public good. scim.ag/4328LAD
‘I really wanted something to happen.’ The students behind the Stand Up for Science protests
New group hopes to turn out researchers for 7 March demonstrations against Trump administration policies
scim.ag
February 19, 2025 at 4:54 PM
Scientists are now organizing events, called Stand Up for Science, on 7 March in Washington, D.C., and state capitals.
So far, they have attracted more than 100 volunteers from some 30 states who are hoping to rally support for research as a public good. scim.ag/4328LAD
So far, they have attracted more than 100 volunteers from some 30 states who are hoping to rally support for research as a public good. scim.ag/4328LAD
I'll be there!
🚨 I will be in DC on March 7th to #StandUpForScience2025 ! 🚨
Show our fed gov't that science SAVES LIVES, EXPANDS THE POSSIBLE, and STRENGTHENS COMMUNITIES.
#ScienceIsForAll
Your part:
- Join me in DC! 🏛️
- Spread the word widely throughout your networks! 🗣️
- Lear about local events near you! 📍
Show our fed gov't that science SAVES LIVES, EXPANDS THE POSSIBLE, and STRENGTHENS COMMUNITIES.
#ScienceIsForAll
Your part:
- Join me in DC! 🏛️
- Spread the word widely throughout your networks! 🗣️
- Lear about local events near you! 📍
February 11, 2025 at 3:38 PM
I'll be there!
Reposted by Katherine Jonas PhD LP
Can’t believe I’m typing this but…
FUCK IT IM PLANNING A STAND UP FOR SCIENCE PROTEST IN DC.
If you want to be involved, be dm me. I’m nervous, I’ve never done this before, but we gotta be the change we want to see in the world.
FUCK IT IM PLANNING A STAND UP FOR SCIENCE PROTEST IN DC.
If you want to be involved, be dm me. I’m nervous, I’ve never done this before, but we gotta be the change we want to see in the world.
IF YOU KNOW IF ANYONE PLANNING A SCIENCE RELATED PROTEST IN DC, PLEASE DM ME!
February 8, 2025 at 6:28 PM
Can’t believe I’m typing this but…
FUCK IT IM PLANNING A STAND UP FOR SCIENCE PROTEST IN DC.
If you want to be involved, be dm me. I’m nervous, I’ve never done this before, but we gotta be the change we want to see in the world.
FUCK IT IM PLANNING A STAND UP FOR SCIENCE PROTEST IN DC.
If you want to be involved, be dm me. I’m nervous, I’ve never done this before, but we gotta be the change we want to see in the world.
Reposted by Katherine Jonas PhD LP
A very colorful preliminary program for the HiTOP 2025 Conference is now available: www.hitop-system.org/hitop-2025-c...
HiTOP 2025 Conference
Information on the HiTOP 2025 Conference
www.hitop-system.org
February 3, 2025 at 11:44 PM
A very colorful preliminary program for the HiTOP 2025 Conference is now available: www.hitop-system.org/hitop-2025-c...