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Julia Stern

@juliastern.bsky.social
1.1K followers 280 following 43 posts

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

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Reposted by Julia Stern
simine vazire @simine.com · 07/10/2026
Another special issue at Psych Science! We invite “submissions that advance the field through critical appraisal of articles previously published by Psychological Science” Please share! www.psychologicalscience.org/publications...
psychologicalscience.org
Special Issue Call for Submissions: “Appraising the Foundations of Psychological Science”
Editors: Tom Beckers and Heather UrryOne way a journal can earn its reputation for quality is to take active steps to vet the articles that appear within its pages after publication. To that end, Psyc...
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Association for Psychological Science @psychscience.bsky.social · 05/10/2026
NEW! Special Issue Call for Submissions: "Appraising the Foundations of Psychological Science" www.psychologicalscience.org/publications... Full list of Psychological Science Calls for Special Issues: www.psychologicalscience.org/publications...
psychologicalscience.org
Special Issue Call for Submissions: “Appraising the Foundations of Psychological Science”
Editors: Tom Beckers and Heather UrryOne way a journal can earn its reputation for quality is to take active steps to vet the articles that appear within its pages after publication. To that end, Psyc...
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Heather Urry @heatherurry.io · 03/10/2026
Psychology people: If you haven't seen them yet, check out these upcoming special issues at Psychological Science. Submissions invited.
psychologicalscience.org
Upcoming <i>Psychological Science</i> Special Issues
Psychological Science is seeking submissions for the following special issues:Advancing Psychological Science Using Large Language ModelsFrom Lab to Life: Psychological Science in the Real WorldCenter...
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Vishnu Sreekumar @vishnusreekumar.bsky.social · 05/08/2026
There is also another call for papers on “Advancing Psychological Science Using Large Language Models” that you should all check out: www.psychologicalscience.org/publications... Stay tuned for a few more upcoming special issues on underrepresented populations and descriptive research.
psychologicalscience.org
Special Issue Call for Submissions: “Advancing Psychological Science Using Large Language Models”
Editors: Jamie Cummins and Ruben C. ArslanPsychological Science invites submissions for a special issue on psychological science involving large language models. We welcome theoretically and empirical...
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Vishnu Sreekumar @vishnusreekumar.bsky.social · 05/08/2026
📢 ***Call for papers at Psychological Science (APS)*** Dr Roni Porat and I are editing a special issue, "From Lab to Life: Psychological Science in the Real World.” Please see the detailed call here (www.psychologicalscience.org/publications...) and send us your best work!
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Ted Schwaba @tedmond.bsky.social · 02/09/2026
Our big Big Five GWAS, out today! Personality Genomics is extremely hot in 2026.
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simine vazire @simine.com · 02/09/2026
Psych Science has retracted Ariely & Wertenbroch (2002). The second author requested the retraction. Both authors agreed to it. journals.sagepub.com/doi/full/10.... So grateful to @datacolada.bsky.social for these blog posts and the work behind them: datacolada.org/138 and datacolada.org/139 1/2
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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simine vazire @simine.com · 28/08/2026
Psych Science (the journal) is broader than you might think! Do you do descriptive research? Or research w/ underrepresented populations or cultural frameworks? Or research on AI/LLMs for psych? Or research testing lab findings in the real world? We have a special issue for that!
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simine vazire @simine.com · 10/08/2026
Special issue at Psych Science on psychology research using LLMs Theoretical & methodological work welcome. Read the full call for important info about what we’re looking for! Submission deadline: 15 March 2027 (15 October 2026 for Registered Reports) www.psychologicalscience.org/publications...
psychologicalscience.org
Special Issue Call for Submissions: “Advancing Psychological Science Using Large Language Models”
Editors: Jamie Cummins and Ruben C. ArslanPsychological Science invites submissions for a special issue on psychological science involving large language models. We welcome theoretically and empirical...
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Reposted by Julia Stern
simine vazire @simine.com · 10/08/2026
Special issue at Psych Science on psychological science in the real world! Send us your best work looking at whether effects from the lab (or from theories) hold up in ecologically valid settings. Submission deadline: 15 January 2027 www.psychologicalscience.org/publications...
psychologicalscience.org
Special Issue Call for Submissions: “From Lab to Life: Psychological Science in the Real World”
Editors: Roni Porat and Vishnu SreekumarPsychological Science invites submissions presenting innovative research that brings psychological science “into the wild,” whether to strengthen its ecological...
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Julia Stern @juliastern.bsky.social · 29/07/2026
Congrats Maria! Really happy to see that you received funding! Sounds like an interesting project :)
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Anne Reitz @annereitz.bsky.social · 28/07/2026
📢 We’re hiring! Postdoc in Personality Psychology & Psychological Assessment at the University of Greifswald. ✨ Lots of freedom for your own research ✨ Start Oct 2026 or later ✨ Long-term perspective toward a permanent position Deadline: 15 Aug Please share — and feel free to get in touch!
uni-greifswald.de
Research Associate (Postdoc) - Institute of Psychology 26/Sa23
Stellenausschreibung Institut für Psychologie
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Julia Stern @juliastern.bsky.social · 06/07/2026
I'm hiring! I am currently establishing my new Research Group for Personality Psychology at Ulm University and am looking for a motivated researcher to join the team starting October 1, 2026 (or by arrangement). 🧵👇 (1/4) 🔗 Full description and details: stellenangebote.uni-ulm.de/jobposting/a...
stellenangebote.uni-ulm.de
Akademische/r Beschäftigte/n (m/w/d) - Abt. Persönlichkeitspsychologie - Referenz-Nr. 26091
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Jessie Sun @jessiesun.bsky.social · 07/07/2026
Interested in doing a postdoc with me in Auckland, New Zealand? 🇳🇿 See info below on a competitive award opportunity, and please spread the word!
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Julia Stern @juliastern.bsky.social · 07/07/2026
Unfortunately not this time, the two PhD positions have already been filled... but it is possible that there will be another one in a year or two (depending on grant agencies...) :)
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Julia Stern @juliastern.bsky.social · 06/07/2026
Aww, thank you so much!
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Julia Stern @juliastern.bsky.social · 06/07/2026
You're way too kind!
static.klipy.com
Officer Benjamin Clawhauser's Cute Reaction
ALT: Officer Benjamin Clawhauser's Cute Reaction
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Julia Stern @juliastern.bsky.social · 06/07/2026
Questions? Feel free to reach out to me! I look forward to receiving your applications and would be grateful if you could share this post with anyone who might be interested. Please note that the job ad is only available in German. (4/4)
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Julia Stern @juliastern.bsky.social · 06/07/2026
Application Deadline: July 22, 2026. How to apply: Please apply via the official Ulm University online portal here: stellenangebote.uni-ulm.de/jobposting/a... (3/4)
stellenangebote.uni-ulm.de
Akademische/r Beschäftigte/n (m/w/d) - Abt. Persönlichkeitspsychologie - Referenz-Nr. 26091
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Julia Stern @juliastern.bsky.social · 06/07/2026
Role: Postdoc or near completion of PhD Contract: 100% E13, 3 years Focus: Open to a broad range of topics within personality psychology—I am looking for someone with shared interests, eager to shape the group's research profile! (2/4)
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Julia Stern @juliastern.bsky.social · 06/07/2026
I'm hiring! I am currently establishing my new Research Group for Personality Psychology at Ulm University and am looking for a motivated researcher to join the team starting October 1, 2026 (or by arrangement). 🧵👇 (1/4) 🔗 Full description and details: stellenangebote.uni-ulm.de/jobposting/a...
stellenangebote.uni-ulm.de
Akademische/r Beschäftigte/n (m/w/d) - Abt. Persönlichkeitspsychologie - Referenz-Nr. 26091
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Michael D. Krämer @mdkraemer.bsky.social · 24/04/2026
project, we‘re hiring a PhD student at the University of Zurich who will be supervised by @wiebkeb.bsky.social and myself. If you are interested or know someone who might be, you can find more information on the position here: jobs.uzh.ch/job-vacancie... (3/3)
jobs.uzh.ch
UZH: Doctoral (PhD) position
The chair of Individual Differences and Assessment (headed by Prof. Dr. Wiebke Bleidorn) focuses on measuring, explaining, and predicting the structures and processes of personality that underlie huma...
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Geoff MacDonald 🇨🇦 @gmacdonalduoft.bsky.social · 26/01/2026
The effect of life events on personality and well-being is a hot topic. But our new paper on the effects of romantic partnering suggests you need to also consider the effect of NOT experiencing the life event. unromanticprof.substack.com/p/do-boosts-...
unromanticprof.substack.com
Do Boosts in Well-Being from Partnering Last?
The importance of tracking both those who partner and those who stay single longitudinally
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Brent W. Roberts @bwroberts.bsky.social · 20/01/2026
A bit of a Festivus inspired post about CLPMs and RI-CLPMs: floggingpvalues.blog/2026/01/20/t...
floggingpvalues.blog
The Inconceivability of the CLPM and RI-CLPM
Written by Brent Roberts and not ChatGTP. Really* The existence of an observational scientist can be a frustrating affair. Relegated to second class citizen status due to interest in phenomena that…
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PsyPost @psypost.bsky.social · 16/01/2026
Remaining single in your twenties is linked to lower life satisfaction
psypost.org
Remaining single in your twenties is linked to lower life satisfaction
A longitudinal analysis of British and German youth finds that staying single through the twenties correlates with rising loneliness and falling life satisfaction, widening the gap with partnered peers.
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Michael D. Krämer @mdkraemer.bsky.social · 07/01/2026
Excited to see this paper now in print at JPSP! doi.org/10.1037/pspp... You can find the postprint version here: osf.io/8c6sz_v2 Thanks again to @berndschaefer.bsky.social (shared 1st author 🙏), Cornelia Wrzus, Yannick Roos and @drichter77.bsky.social for the great collaboration!
doi.org
APA PsycNet
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Ruben C. Arslan @ruben.the100.ci · 03/12/2025
Want to make nice graphs with me, starting next year? I'm hiring for a position at the University of Witten/Herdecke. uni-wh.softgarden.io/job/61280592...
 ‘A fragmented field: Construct and measure proliferation in psychology.’ (2025)From ‘Language models accurately infer correlations between psychological items and scales from text alone.’ (2025)From ‘Not within spitting distance: salivary immunoassays of estradiol have subpar validity for predicting cycle phase.’ (2023)Work in progress with cycle tracking data from the app Clue
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Björn E. Hommel @bjoernhommel.bsky.social · 26/11/2025
🚨 SynthNet is out 🚨 Researchers propose new constructs and measures faster than anyone can track. We (@anniria.bsky.social @ruben.the100.ci) built a search engine to check what already exists and help identify redundancies; indexing 74,000 scales from ~31,500 instruments in APA PsycTests. 🧵1/3
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Tom Hardwicke @tomhardwicke.bsky.social · 24/11/2025
Congratulations to @simine.com well deserved winner of the Einstein Foundation Individual Award for Promoting Quality in Research 2025 🎉 www.einsteinfoundation.de/en/media/pre...
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Julia M. Rohrer @dingdingpeng.the100.ci · 24/11/2025
I think it's hard to overstate how much Simine has changed research practices and standards in psychology for the better, despite at times massive resistance from powerful parties with a vested interest in maintaining the status quo. Very well deserved award imho 🥳
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Michael D. Krämer @mdkraemer.bsky.social · 02/11/2025
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)
osf.io
OSF
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European Association of Personality Psychology (EAPP) @eapp-official.bsky.social · 22/10/2025
☀️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
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Geoff MacDonald 🇨🇦 @gmacdonalduoft.bsky.social · 15/09/2025
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.
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Niclas Kuper @niclaskuper.bsky.social · 03/09/2025
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"
researchgate.net
(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...
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Niclas Kuper @niclaskuper.bsky.social · 14/08/2025
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...
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StressLab UniVienna @stresslabvienna.bsky.social · 12/08/2025
Read our new meta-analyses paper on the connection between stress and premenstrual symptoms. Congratulations to Celine Bencker for leading this project!
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Celine Bencker @celinebencker.bsky.social · 11/08/2025
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....
doi.org
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
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Dr. Lutz Böhm @drlutzboehm.bsky.social · 24/07/2025
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...
mdpi.com
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Michael D. Krämer @mdkraemer.bsky.social · 21/07/2025
Check out our preprint - the result of a really fun collaboration!
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Geoff MacDonald 🇨🇦 @gmacdonalduoft.bsky.social · 08/07/2025
New MacLab paper. Do people partner up to save on rent? Apparently not.
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Lynda Boothroyd @drboothroyd.bsky.social · 02/07/2025
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 😊
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Julia Stern @juliastern.bsky.social · 24/06/2025
Aww you're way too kind, Victor! Thanks for all your support - you're the best and my personal star. Very grateful for knowing you ❤️
media.tenor.com
a woman is smiling and holding her hand to her chest while wearing a polka dot shirt .
ALT: a woman is smiling and holding her hand to her chest while wearing a polka dot shirt .
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Catherine Molho @cmolho.bsky.social · 24/06/2025
Many thanks to HBES for this recognition and congratulations to Rising Stars @mohammadatari.bsky.social @danielredhead.bsky.social @juliastern.bsky.social 💫
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Human Behavior & Evolution Society @humbehevosoc.bsky.social · 23/06/2025
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...
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Human Behavior & Evolution Society @humbehevosoc.bsky.social · 23/06/2025
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...
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Ruben C. Arslan @ruben.the100.ci · 23/06/2025
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...
We provide the first evidence from a randomized double-blind placebo control study of oral contraceptives on women's preferences for masculine and symmetric faces in men. We find no evidence of an effect. Similar, our correlational results testing for an association between menstrual cycle phases and facial preferences fail to reject the null hypothesis of no association, as do our estimated correlations between hormone levels and facial preferences. Although the early literature largely found support for variation in facial preferences over the menstrual cycle and with oral contraceptive use (Feinberg et al., 2008; Johnston et al., 2001; Little et al., 2002; Little et al., 2013; Penton-Voak et al., 1999; Roney & Simmons, 2008), our null results align with more recent large-sample correlational studies (Jones et al., 2018; Marcinkowska et al., 2019). One possible motivation of the hypothesis that oral contraceptives lower the preferences for facial masculinity and symmetry is in terms of the dual mating theory. In a recent review of the literature Jones et al. (2019) point out several methodological problems in the early work testing this hypothesis, such as low statistical power, and conclude that recent and methodologically stronger work fails to support the hypothesis. Our findings lend further support for their conclusions.
There are also several reasons for why false positive results could have been published in the earlier literature. Low statistical power increases the probability for false positive results as well as inflated effect sizes. Many of the older studies also rely on self-reported menstrual cycle data, which is subject to mismeasurement. In addition, without pre-analysis plans there is room for the so-called “researcher degrees of freedom” (Simmons et al., 2011) to influence the analysis such that statistically significant results become more likely to be false positive ones. This can occur through excluding observations, using covariates, testing…Table 2. The effect of OC on facial preferences.

Empty Cell	% Change in Facial Preferences
(Follow-Up - Baseline)	Difference	P-value of difference
Empty Cell	Treatment (N = 165)	Placebo (N = 168)	Empty Cell	Empty Cell
Masculine Faces	−0.083	−0.034	−0.049	0.162
Empty Cell	(0.026)	(0.023)	(0.035)	
Symmetric Faces	−0.025	0.027	−0.052	0.132
Empty Cell	(0.024)	(0.025)	(0.034)
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Michael D. Krämer @mdkraemer.bsky.social · 16/06/2025
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...
doi.org
APA PsycNet
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Maria Meier @mariame.bsky.social · 04/06/2025
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). ⬇️
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Ruben C. Arslan @ruben.the100.ci · 11/06/2025
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
Wissenschaftliche/r Mitarbeiter/in (w/m/d) am Lehrstuhl für Psychologische Forschungsmethoden bei Universität Witten/Herdecke
Wir suchen: Wissenschaftliche/r Mitarbeiter/in (w/m/d) am Lehrstuhl für Psychologische Forschungsmethoden (Teilzeit) • Alfred-Herrhausen-Straße 50, 58455 Witten, Deutschland
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Julia M. Rohrer @dingdingpeng.the100.ci · 06/06/2025
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/...
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