Julia Stern
@juliastern.bsky.social
Personality & Psychological Assessment @UniBremen, Mom 👦🏼👶🏼
I study Personality and Individual Differences (broadly), in relation to Hormones, Menstrual Cycle, Puberty, Mating, Singlehood, Voices, personality perception & development
#OpenScience
I study Personality and Individual Differences (broadly), in relation to Hormones, Menstrual Cycle, Puberty, Mating, Singlehood, Voices, personality perception & development
#OpenScience
Reposted by Julia Stern
New preprint! 📚📱 osf.io/3kpf9_v1
Did you ever stand in a bookshop and wondered who tends to buy self-help books, and whether people who buy them actually change? Here, we looked at these questions for self-help products more generally (also apps, seminars, etc.), which are a rapidly (1/3)
Did you ever stand in a bookshop and wondered who tends to buy self-help books, and whether people who buy them actually change? Here, we looked at these questions for self-help products more generally (also apps, seminars, etc.), which are a rapidly (1/3)
OSF
osf.io
November 2, 2025 at 5:47 PM
New preprint! 📚📱 osf.io/3kpf9_v1
Did you ever stand in a bookshop and wondered who tends to buy self-help books, and whether people who buy them actually change? Here, we looked at these questions for self-help products more generally (also apps, seminars, etc.), which are a rapidly (1/3)
Did you ever stand in a bookshop and wondered who tends to buy self-help books, and whether people who buy them actually change? Here, we looked at these questions for self-help products more generally (also apps, seminars, etc.), which are a rapidly (1/3)
Reposted by Julia Stern
☀️To all Master’s & PhD students: Join the Summer School of Personality Science 2026 (July 15–19, Edinburgh) for a week of research training, mentoring & networking in personality psychology.
Template: osf.io/76ej2/files/...
Apply Nov 2-20: www.conftool.org/ssps2026
#SSPS #eapp
Template: osf.io/76ej2/files/...
Apply Nov 2-20: www.conftool.org/ssps2026
#SSPS #eapp
October 22, 2025 at 7:53 AM
☀️To all Master’s & PhD students: Join the Summer School of Personality Science 2026 (July 15–19, Edinburgh) for a week of research training, mentoring & networking in personality psychology.
Template: osf.io/76ej2/files/...
Apply Nov 2-20: www.conftool.org/ssps2026
#SSPS #eapp
Template: osf.io/76ej2/files/...
Apply Nov 2-20: www.conftool.org/ssps2026
#SSPS #eapp
Reposted by Julia Stern
Is the idea that getting into a romantic relationship increases well-being a myth? A new MacLab paper says no. And I had so much to say about this work, I started a Substack: The Unromantic. Links for the paper and the Substack in replies.
September 15, 2025 at 3:33 PM
Is the idea that getting into a romantic relationship increases well-being a myth? A new MacLab paper says no. And I had so much to say about this work, I started a Substack: The Unromantic. Links for the paper and the Substack in replies.
Reposted by Julia Stern
Very excited to share our new manuscript accepted at JPSP: "Cultural Differences in the Personality Triad: The Interplay of Personality Traits, Situation Characteristics, and Behavioral States Around the World"
(PDF) Cultural differences in the personality triad: The interplay of personality traits, situation characteristics, and behavioral states around the world
PDF | Understanding the interplay of persons, situations, and behavior (the Personality Triad) is a key task of psychology. However, previous research... | Find, read and cite all the research you nee...
www.researchgate.net
September 3, 2025 at 3:26 PM
Very excited to share our new manuscript accepted at JPSP: "Cultural Differences in the Personality Triad: The Interplay of Personality Traits, Situation Characteristics, and Behavioral States Around the World"
Reposted by Julia Stern
Excited to share this new preprint with Simon Breil, Katharina Utesch & Mitja Back: "Predicting More Behavior More of the Time: On the Behavioral Nature of Different Personality Trait Measures" osf.io/preprints/ps...
August 14, 2025 at 11:06 AM
Excited to share this new preprint with Simon Breil, Katharina Utesch & Mitja Back: "Predicting More Behavior More of the Time: On the Behavioral Nature of Different Personality Trait Measures" osf.io/preprints/ps...
Reposted by Julia Stern
Read our new meta-analyses paper on the connection between stress and premenstrual symptoms. Congratulations to Celine Bencker for leading this project!
How are #stress and premenstrual symptoms connected?
And are those with a #trauma history more likely to have #PMS or #PMDD? 🌩️
Our systematic review & three meta-analyses combine evidence from 66 studies to explore these questions.
Excited our work is finally out! ✨
👉 doi.org/10.1192/bjp....
And are those with a #trauma history more likely to have #PMS or #PMDD? 🌩️
Our systematic review & three meta-analyses combine evidence from 66 studies to explore these questions.
Excited our work is finally out! ✨
👉 doi.org/10.1192/bjp....
Associations between premenstrual symptoms and (traumatic) stress: a systematic review and three multilevel meta-analyses | The British Journal of Psychiatry | Cambridge Core
Associations between premenstrual symptoms and (traumatic) stress: a systematic review and three multilevel meta-analyses
doi.org
August 12, 2025 at 8:21 AM
Read our new meta-analyses paper on the connection between stress and premenstrual symptoms. Congratulations to Celine Bencker for leading this project!
Reposted by Julia Stern
How are #stress and premenstrual symptoms connected?
And are those with a #trauma history more likely to have #PMS or #PMDD? 🌩️
Our systematic review & three meta-analyses combine evidence from 66 studies to explore these questions.
Excited our work is finally out! ✨
👉 doi.org/10.1192/bjp....
And are those with a #trauma history more likely to have #PMS or #PMDD? 🌩️
Our systematic review & three meta-analyses combine evidence from 66 studies to explore these questions.
Excited our work is finally out! ✨
👉 doi.org/10.1192/bjp....
Associations between premenstrual symptoms and (traumatic) stress: a systematic review and three multilevel meta-analyses | The British Journal of Psychiatry | Cambridge Core
Associations between premenstrual symptoms and (traumatic) stress: a systematic review and three multilevel meta-analyses
doi.org
August 11, 2025 at 1:12 PM
How are #stress and premenstrual symptoms connected?
And are those with a #trauma history more likely to have #PMS or #PMDD? 🌩️
Our systematic review & three meta-analyses combine evidence from 66 studies to explore these questions.
Excited our work is finally out! ✨
👉 doi.org/10.1192/bjp....
And are those with a #trauma history more likely to have #PMS or #PMDD? 🌩️
Our systematic review & three meta-analyses combine evidence from 66 studies to explore these questions.
Excited our work is finally out! ✨
👉 doi.org/10.1192/bjp....
Reposted by Julia Stern
I ❤️ MDPI
Schaut euch mal die Editoren dieses Special Issues an.
Dann schaut mal bei allen Artikeln auf die Autorenliste.
Und dann sagt mir, ob euch etwas auffällt.
Special Issue:
"Towards Autonomous Operation of Biologics and Botanicals"
www.mdpi.com/journal/proc...
Schaut euch mal die Editoren dieses Special Issues an.
Dann schaut mal bei allen Artikeln auf die Autorenliste.
Und dann sagt mir, ob euch etwas auffällt.
Special Issue:
"Towards Autonomous Operation of Biologics and Botanicals"
www.mdpi.com/journal/proc...
www.mdpi.com
July 24, 2025 at 2:28 PM
I ❤️ MDPI
Schaut euch mal die Editoren dieses Special Issues an.
Dann schaut mal bei allen Artikeln auf die Autorenliste.
Und dann sagt mir, ob euch etwas auffällt.
Special Issue:
"Towards Autonomous Operation of Biologics and Botanicals"
www.mdpi.com/journal/proc...
Schaut euch mal die Editoren dieses Special Issues an.
Dann schaut mal bei allen Artikeln auf die Autorenliste.
Und dann sagt mir, ob euch etwas auffällt.
Special Issue:
"Towards Autonomous Operation of Biologics and Botanicals"
www.mdpi.com/journal/proc...
Reposted by Julia Stern
Check out our preprint - the result of a really fun collaboration!
New preprint: osf.io/8c6sz_v1
@mdkraemer.bsky.social and I, with our fantastic co-authors Cornelia Wrzus, Yannick Roos and @drichter77.bsky.social examined how social contact, desire, and affect dynamically interact across different modalities (in-person, digital) and time scales (hourly, daily).
@mdkraemer.bsky.social and I, with our fantastic co-authors Cornelia Wrzus, Yannick Roos and @drichter77.bsky.social examined how social contact, desire, and affect dynamically interact across different modalities (in-person, digital) and time scales (hourly, daily).
OSF
osf.io
July 21, 2025 at 7:48 PM
Check out our preprint - the result of a really fun collaboration!
Reposted by Julia Stern
New MacLab paper. Do people partner up to save on rent? Apparently not.
Money can’t buy love but it might be a necessary first step, psychologists find.
New research by @gmacdonalduoft.bsky.social shows that single people with higher incomes are more likely to want a relationship, think they are ready for one, and start one up.
💙 www.psych.utoronto.ca/news/money-c...
New research by @gmacdonalduoft.bsky.social shows that single people with higher incomes are more likely to want a relationship, think they are ready for one, and start one up.
💙 www.psych.utoronto.ca/news/money-c...
July 8, 2025 at 2:25 PM
New MacLab paper. Do people partner up to save on rent? Apparently not.
Reposted by Julia Stern
Saw off two PhD students and one MRes student this morning. Happy day 🥳🍾.
If you want an amazing PhD of developmental body image hit up Dr Louise Hanson; for a post doc on voices I cannot recommend Dr @jrut.bsky.social highly enough.
And Joe McAdam is looking for PhD funding too 😊
If you want an amazing PhD of developmental body image hit up Dr Louise Hanson; for a post doc on voices I cannot recommend Dr @jrut.bsky.social highly enough.
And Joe McAdam is looking for PhD funding too 😊
July 2, 2025 at 12:47 PM
Saw off two PhD students and one MRes student this morning. Happy day 🥳🍾.
If you want an amazing PhD of developmental body image hit up Dr Louise Hanson; for a post doc on voices I cannot recommend Dr @jrut.bsky.social highly enough.
And Joe McAdam is looking for PhD funding too 😊
If you want an amazing PhD of developmental body image hit up Dr Louise Hanson; for a post doc on voices I cannot recommend Dr @jrut.bsky.social highly enough.
And Joe McAdam is looking for PhD funding too 😊
Reposted by Julia Stern
Many thanks to HBES for this recognition and congratulations to Rising Stars @mohammadatari.bsky.social @danielredhead.bsky.social @juliastern.bsky.social 💫
HBES is happy to recognize the following Rising Stars (<8 years post-PhD) for their research contributions:
Mohammad Atari: mohammadatari.com
Catherine Molho: catherinemolho.github.io
Daniel Redhead: www.rug.nl/staff/d.j.re...
Julia Stern: www.uni-bremen.de/en/pppd/team...
Mohammad Atari: mohammadatari.com
Catherine Molho: catherinemolho.github.io
Daniel Redhead: www.rug.nl/staff/d.j.re...
Julia Stern: www.uni-bremen.de/en/pppd/team...
June 24, 2025 at 8:30 AM
Many thanks to HBES for this recognition and congratulations to Rising Stars @mohammadatari.bsky.social @danielredhead.bsky.social @juliastern.bsky.social 💫
Reposted by Julia Stern
HBES is happy to recognize the following Rising Stars (<8 years post-PhD) for their research contributions:
Mohammad Atari: mohammadatari.com
Catherine Molho: catherinemolho.github.io
Daniel Redhead: www.rug.nl/staff/d.j.re...
Julia Stern: www.uni-bremen.de/en/pppd/team...
Mohammad Atari: mohammadatari.com
Catherine Molho: catherinemolho.github.io
Daniel Redhead: www.rug.nl/staff/d.j.re...
Julia Stern: www.uni-bremen.de/en/pppd/team...
June 23, 2025 at 8:54 PM
HBES is happy to recognize the following Rising Stars (<8 years post-PhD) for their research contributions:
Mohammad Atari: mohammadatari.com
Catherine Molho: catherinemolho.github.io
Daniel Redhead: www.rug.nl/staff/d.j.re...
Julia Stern: www.uni-bremen.de/en/pppd/team...
Mohammad Atari: mohammadatari.com
Catherine Molho: catherinemolho.github.io
Daniel Redhead: www.rug.nl/staff/d.j.re...
Julia Stern: www.uni-bremen.de/en/pppd/team...
Reposted by Julia Stern
Congrats to HBES Rising Star Julia Stern, for her evolutionary work on personality, including its effects on well-being, mate choice, as well as the development and hormonal correlates of personality: www.uni-bremen.de/en/pppd/team...
June 23, 2025 at 8:56 PM
Congrats to HBES Rising Star Julia Stern, for her evolutionary work on personality, including its effects on well-being, mate choice, as well as the development and hormonal correlates of personality: www.uni-bremen.de/en/pppd/team...
Reposted by Julia Stern
New results from one of the few preregistered, placebo-controlled combined oral contraceptive RCTs. No pill effects found on preferences for masculine or symmetric faces, no menstrual cycle effects.
N=340, so small effects may have gone undetected.
www.sciencedirect.com/science/arti...
N=340, so small effects may have gone undetected.
www.sciencedirect.com/science/arti...
June 23, 2025 at 6:08 AM
New results from one of the few preregistered, placebo-controlled combined oral contraceptive RCTs. No pill effects found on preferences for masculine or symmetric faces, no menstrual cycle effects.
N=340, so small effects may have gone undetected.
www.sciencedirect.com/science/arti...
N=340, so small effects may have gone undetected.
www.sciencedirect.com/science/arti...
Reposted by Julia Stern
Self-improvement, self-acceptance, and/or methods effects? Travis Miller, @chopwood.bsky.social , and @wiebkeb.bsky.social, and I examined factors that might explain personality change intervention effects - now in print at JPSP 🥳: doi.org/10.1037/pspp...
June 16, 2025 at 6:18 PM
Self-improvement, self-acceptance, and/or methods effects? Travis Miller, @chopwood.bsky.social , and @wiebkeb.bsky.social, and I examined factors that might explain personality change intervention effects - now in print at JPSP 🥳: doi.org/10.1037/pspp...
Reposted by Julia Stern
Do you work with #hormones? 🚶♂️🐁 🧫 Have you ever tried to share your data or worked with datasets and encountered challenges?
#NODES aims to develop a standard data format for hormones to remedy this.
Participate in our Delphi study to let us know what should be considered (open until mid June). ⬇️
#NODES aims to develop a standard data format for hormones to remedy this.
Participate in our Delphi study to let us know what should be considered (open until mid June). ⬇️
Important #NODES updates🔥 (2/2)
We are now recruiting experts (human & animal researchers, clinicians etc) in the field of (psycho)neuroendocrinology that volunteer to fill our survey 📝
survey.questionstar.com/NODES-Delphi...
Results will be used as a starting point to develop the data structure.
We are now recruiting experts (human & animal researchers, clinicians etc) in the field of (psycho)neuroendocrinology that volunteer to fill our survey 📝
survey.questionstar.com/NODES-Delphi...
Results will be used as a starting point to develop the data structure.
June 4, 2025 at 7:20 AM
Do you work with #hormones? 🚶♂️🐁 🧫 Have you ever tried to share your data or worked with datasets and encountered challenges?
#NODES aims to develop a standard data format for hormones to remedy this.
Participate in our Delphi study to let us know what should be considered (open until mid June). ⬇️
#NODES aims to develop a standard data format for hormones to remedy this.
Participate in our Delphi study to let us know what should be considered (open until mid June). ⬇️
Reposted by Julia Stern
Join me at the University of Witten/Herdecke for research on meta scientific topics, replication work or other fun things :-) as well as teaching some IMO wonderful students
short.sg/j/56902143
short.sg/j/56902143
June 11, 2025 at 2:41 PM
Join me at the University of Witten/Herdecke for research on meta scientific topics, replication work or other fun things :-) as well as teaching some IMO wonderful students
short.sg/j/56902143
short.sg/j/56902143
Reposted by Julia Stern
Now officially out with nice formatting and all 🥳 "Thinking clearly about age, period, and cohort effects" -- a gentle introduction to the age-period-cohort problem and how to "solve" it through various types of assumptions.
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
June 6, 2025 at 7:38 AM
Now officially out with nice formatting and all 🥳 "Thinking clearly about age, period, and cohort effects" -- a gentle introduction to the age-period-cohort problem and how to "solve" it through various types of assumptions.
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
Join us at Psych Science! We're currently recruiting volunteers helping with reproducibility checks for conditionally accepted manuscripts. Important tasks - great team - recommended!
Please spread the word!
Psych Science is recruiting volunteers to help conduct computational reproducibility checks.
If you have experience writing reproducible analysis scripts in psychology, and want to join the team, please apply!
www.psychologicalscience.org/publications...
Psych Science is recruiting volunteers to help conduct computational reproducibility checks.
If you have experience writing reproducible analysis scripts in psychology, and want to join the team, please apply!
www.psychologicalscience.org/publications...
Call for Volunteers: Psychological Science REPEAT Network
Are you passionate about ensuring the reproducibility of scientific research? The journal Psychological Science is looking for volunteers to join REPEAT—our new network of computational reproducibilit...
www.psychologicalscience.org
May 23, 2025 at 5:16 PM
Join us at Psych Science! We're currently recruiting volunteers helping with reproducibility checks for conditionally accepted manuscripts. Important tasks - great team - recommended!
Reposted by Julia Stern
Psychological Science is looking for volunteers to join REPEAT—our new network of computational reproducibility checkers. Please join us if you have the time and skills! www.psychologicalscience.org/publications...
Call for Volunteers: Psychological Science REPEAT Network
Are you passionate about ensuring the reproducibility of scientific research? The journal Psychological Science is looking for volunteers to join REPEAT—our new network of computational reproducibilit...
www.psychologicalscience.org
May 23, 2025 at 3:11 PM
Psychological Science is looking for volunteers to join REPEAT—our new network of computational reproducibility checkers. Please join us if you have the time and skills! www.psychologicalscience.org/publications...
Reposted by Julia Stern
Important #NODES updates🔥 (2/2)
We are now recruiting experts (human & animal researchers, clinicians etc) in the field of (psycho)neuroendocrinology that volunteer to fill our survey 📝
survey.questionstar.com/NODES-Delphi...
Results will be used as a starting point to develop the data structure.
We are now recruiting experts (human & animal researchers, clinicians etc) in the field of (psycho)neuroendocrinology that volunteer to fill our survey 📝
survey.questionstar.com/NODES-Delphi...
Results will be used as a starting point to develop the data structure.
May 21, 2025 at 7:47 AM
Important #NODES updates🔥 (2/2)
We are now recruiting experts (human & animal researchers, clinicians etc) in the field of (psycho)neuroendocrinology that volunteer to fill our survey 📝
survey.questionstar.com/NODES-Delphi...
Results will be used as a starting point to develop the data structure.
We are now recruiting experts (human & animal researchers, clinicians etc) in the field of (psycho)neuroendocrinology that volunteer to fill our survey 📝
survey.questionstar.com/NODES-Delphi...
Results will be used as a starting point to develop the data structure.
Reposted by Julia Stern
Why Should You Trust Research Published in #PsychologicalScience?
Read @simine.com's Editorial, NOW online
Read @simine.com's Editorial, NOW online
Why Should You Trust Research Published in Psychological Science? - Simine Vazire, 2025
journals.sagepub.com
May 13, 2025 at 1:23 PM
Why Should You Trust Research Published in #PsychologicalScience?
Read @simine.com's Editorial, NOW online
Read @simine.com's Editorial, NOW online
Reposted by Julia Stern
My editorial on how journals can earn trust.
We often use journal names as proxies for quality. This is bad bc it’s not valid. But it could be. Editors could make journal name a valid signal. And we could place value on journals that show us how they do that.
journals.sagepub.com/doi/full/10....
We often use journal names as proxies for quality. This is bad bc it’s not valid. But it could be. Editors could make journal name a valid signal. And we could place value on journals that show us how they do that.
journals.sagepub.com/doi/full/10....
May 8, 2025 at 9:25 AM
My editorial on how journals can earn trust.
We often use journal names as proxies for quality. This is bad bc it’s not valid. But it could be. Editors could make journal name a valid signal. And we could place value on journals that show us how they do that.
journals.sagepub.com/doi/full/10....
We often use journal names as proxies for quality. This is bad bc it’s not valid. But it could be. Editors could make journal name a valid signal. And we could place value on journals that show us how they do that.
journals.sagepub.com/doi/full/10....
Reposted by Julia Stern
Valerie Baettig asks whether Tsimane women experience PMS. Answer: possibly slightly but not enough that they notice.
Also: across the 10 women cycles were super variable hormonally. More evidence we need hormone controls in cycle studies!
#ehbea #ehbea2025
Also: across the 10 women cycles were super variable hormonally. More evidence we need hormone controls in cycle studies!
#ehbea #ehbea2025
April 17, 2025 at 1:24 PM
Valerie Baettig asks whether Tsimane women experience PMS. Answer: possibly slightly but not enough that they notice.
Also: across the 10 women cycles were super variable hormonally. More evidence we need hormone controls in cycle studies!
#ehbea #ehbea2025
Also: across the 10 women cycles were super variable hormonally. More evidence we need hormone controls in cycle studies!
#ehbea #ehbea2025