Why do some people feel lonelier than others? Drawing on 441 effects, our meta-analysis shows a clear link between insecure attachment orientations (anxious or avoidant) and loneliness (r= .38). Read the preprint: osf.io/preprints/ps... Together with Natalie Kazianis & @bueckersusanne.bsky.social

New preprint! Many claim that first sex is a huge risk for teens. We tested that claim in a large, nationally representative German sample. Core question: Do first sexual experiences harm adolescents, or do they reflect prior well-being? osf.io/preprints/ps...

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)

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)

Great opportunity for PhDs! The 2022 Madrid summer school was amazing

Auf Englisch sagt man, "I have a book inside me." Das hatte ich bis vor kurzem auch, aber jetzt nicht mehr - denn ich habe es tatsächlich (fast) geschrieben, und am 24.3.2026 wird es so erscheinen: #Einsamkeit

New paper out 🎓: Personality Traits and Provision of Grandparental Childcare: Evidence from Europe (w/ @valeriabordone.bsky.social, Giorgio Di Gessa & @mdkraemer.bsky.social Using data from @share-eric.bsky.social, we find personality matters for grandhild care provision doi.org/10.1080/1535...

In a new paper, my colleagues and I set out to demonstrate how method biases can create spurious findings in relationship science, by using a seemingly meaningless scale (e.g., "My relationship has very good Saturn") to predict relationship outcomes. journals.sagepub.com/doi/10.1177/...

Ever stared at a table of regression coefficients & wondered what you're doing with your life? Very excited to share this gentle introduction to another way of making sense of statistical models (w @vincentab.bsky.social) Preprint: doi.org/10.31234/osf... Website: j-rohrer.github.io/marginal-psy...

Wie verändert sich unsere Persönlichkeit über ein Jahr? Dazu starten wir heute eine neue Studie und suchen nach Teilnehmenden zwischen 18-40 Jahren, die Interesse haben, Einblicke in ihre Persönlichkeit, Wohlbefinden und Verhalten über ein Jahr zu erhalten und bis zu 173 CHF (~185€) zu verdienen.

Check out our preprint - the result of a really fun collaboration!

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...

Starting to look like I might not be able to work at Harvard anymore due to recent funding cuts. If you know of any open statistical consulting positions that support remote work or are NYC-based, please reach out! 😅

We are conducting a meta-analysis on personal and contextual predictors of solitude. We're looking for unpublished research such as theses, unpublished manuscripts, conference submissions etc. Full call for data: tinyurl.com/4hur45cw Please reskeet, or message me if you know unpublished research!

Fantastic speach by @cdrosten.bsky.social on the freedom and responsibilities of researchers in these trying times

Postdoc position open in Zurich -- Prof. Martin Tomasik and I have a joint SNF project on interpretable neural network approaches for large scale, complex item / temporal structure, online learning / cognitive development data. Please retweet. tinyurl.com/PostdocGNNSNF

How do people differ in pursuing their social lives? In a new paper at JPSP, lead by Cornelia Wrzus, we examined the affiliation motive (and other social traits) as moderators of how people dynamically regulate their social interactions. Across two studies with experience sampling and

Interested in the computational reproducibilty of research papers? @psychscience.bsky.social Psych Science is looking to extend their network of people providing checks of reviewed manuscrips: www.psychologicalscience.org/publications...

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...

Now published at EJP: doi.org/10.1177/0890...

New preprint with @rebiweidmann.bsky.social @sophiepotter.bsky.social Dikla Segel-Karpas and Jenna Wünsche: "When you're with me, baby, the skies will be blue for all my life? A dyadic longitudinal study of relationship happiness through midlife" osf.io/preprints/ps... (1/5)

🚨 Job alert - please share! I'm looking for a doctoral researcher (3 years, 75%) to join my #ERC project #Loneliness across time and space (LOTIS) at @ruhr-uni-bochum.de, starting June 1 or later. Details in thread 👇 #PsychSciSky

New preprint! Ever heard that personality doesn't change? Do you believe that? (you shouldn't) Using data from an online survey (n = 887) & eight longitudinal datasets (n = 166,971), we compared perceived vs. actual lifespan changes in personality and 20+ individual differences (1/8) osf.io/ytmxp

Together with @wiebkeb.bsky.social I investigated how personality relates to who takes on informal caregiving, and how informal care responsibilities in turn affect personality: journals.sagepub.com/doi/10.1177/... On the level of nuances (items), we found some evidence for the corresponsive

New Preprint Alert! Why do people differ in their self-esteem development after a negative life event? With M. Altorfer, and @peterhaehner.bsky.social, I addressed this question by studying self-esteem changes over six months after a negative life event. Full preprint here: osf.io/preprints/ps...

Does smartphone use make people feel lonelier? Or does loneliness predict smartphone use? We combined experience sampling data with smartphone usage data to examine the bidirectional association between well-being and smartphone use over time. Published in @apajournals.bsky.social Emotion! 🧵 👇

Mein DFG Projekt läuft im Juni aus, bin also danach potentiell für Jobs zu haben. Ab jetzt freu ich mich immer wenn ihr mir was schickt, vorzugsweise Berlin aber nicht nur, möglichst Forschung. Meine Schwerpunkte sind Alters- , und Entwicklungs-, aber auch Persönlichkeits- und Arbeitspsychologie

Are you interested in age or cohort or period effects? I have just updated my primer on the topic! Now with a new framing, a handy flow chart to determine which approach may be suitable, and a new empirical example. What do people in Germany think about mothers who work? osf.io/preprints/ps...

I talked to Özge Fischer-Baum from @psychscience.bsky.social about our recent paper on informal caregivers‘ wellbeing! Their podcast Under the Cortex is a really fun format 😊 www.psychologicalscience.org/news/utc-202...

New research by @juliastern.bsky.social and colleagues finds that lifelong singles have lower life satisfaction scores compared to those in relationships. #Relationships #Marriage

Ever wondered whether our personality influences our first sexual milestone? 🍒 We explored how the Big Five traits affect the timing of first sexual experiences — and how these, in turn, shape personality traits over time. Check out our preprint: doi.org/10.31234/osf... #PersonalityPsych

How should we score divergent thinking tasks to best assess the ability to generate creative ideas? 🤔 It’s a big question in creativity research, so we systematically compared different scoring approaches to evaluate their psychometric quality. Check out our findings! doi.org/10.1002/jocb...

Check out Laura‘s new paper that compares weill-being in parents and childless people over loooong time spans!!!

A study by @wiebkeb.bsky.social & @mdkraemer.bsky.social shows caregiving lowers life satisfaction and raises anxiety, depression, and loneliness. #SupportCaregivers

Check out these two preprints on life events and personality change where the amazing @peterhaehner.bsky.social put in tons of meticulous work to analyze ALL the available panel data on the topic! In addition to meta-analyses across data sets, two ShinyApps show all the individual results 🎉

More than happy to share that our manuscript investigating „Differences Between Lifelong Singles and Ever-Partnered Individuals in Big Five Personality Traits and Life Satisfaction“ across 27 countries is now available online at Psychological Science (journals.sagepub.com/doi/10.1177/...)! A 🧵:

Are singles with the least lifetime involvement in romantic relationships "single at heart" and therefore with the best well-being outcomes? Our new paper in Psychological Science suggests, on average, no (N = 77,064, mainly ≥ 50 years, 27 countries). journals.sagepub.com/doi/10.1177/...

How does providing informal care affect people's well-being? @wiebkeb.bsky.social and I used longitudinal data to examine this question across different well-being aspects, 3 countries (🇳🇱, 🇩🇪, 🇦🇺), and several moderators. See below for a thread or @psychscience.bsky.social : doi.org/10.1177/0956...

Check out this recently published paper lead-authored by my PhD colleague Yannick Roos (who's not on Bluesky): doi.org/10.1037/pspp... We examined in 2 studies how contextual social factors (e.g., neighborhood, household composition) relate to differential regulation of social interactions in daily

the fallout from the Francesca Gino research misconduct scandal isn't over. @engber.bsky.social writes about how an effort by some of her colleagues to self-audit their work with her ended up raising even more questions — for them personally and their whole field www.theatlantic.com/magazine/arc...

For this EU project on #loneliness, I am looking for a #postdoc! More details: jobs.ruhr-uni-bochum.de/jobposting/4...

New preprint 🤗 Life events are a commonly studied environmental factor believed to influence normal-range personality development (such as the Big Five), but how well does this extend to features of personality pathology? (1/7) t.co/PyPkEUATP3

New preprint! osf.io/preprints/ps... The age-period-cohort problem is something that many researchers are vaguely aware of. There have been very cool advances in how to reason about it which don't seem to be well-known in psych. So, I've written a primer!

Already excited for the @dgps.bsky.social congress next week in Vienna? 🇦🇹 If you're around on Wed. 9:30, we'd love to see you in our symposium on social drivers of personality change w/ Manon van Scheppingen, Larissa Wieczorek, Eva Bleckmann, & @rosalieandrae.bsky.social (who created this graphic😊)

Still friends with people you randomly met in a university study group? 👯🧑‍🎓 In this preprint with André Kretzschmar, @chopwood.bsky.social, and @wiebkeb.bsky.social, we looked at social influences on personality change in a design that randomized first-semester students to peer groups (1/4)

Excited to share this preprint on personality interventions that I've been working on the last year together with Travis Miller, @chopwood.bsky.social , and @wiebkeb.bsky.social : osf.io/eb6p7 🥳🥳 We compared two intervention programs: self-improvement and self-acceptance in (1/7)

Excited to see this out now in JPSP :-) It’s pretty standard to acknowledge individual differences in mean levels of traits (via intercepts) and changes in traits (often via linear slopes), but what about model forms of personality trajectories? doi.org/10.1037/pspp...

If you’ll be at #ECP21 in Berlin and have 90 minutes to spare on Thursday, come check out our symposium on personality interventions with some *really* cool talks!

I’m reviewing applications for PhD students to join me in the Psychology program (social/personality area) at UC Riverside in Fall 2025! Apply if interested in emotion/emotion regulation in daily life. Sharing would be appreciated :) More info⬇️

In meiner Abteilung Persönlichkeitspsychologie wird eine wissenschaftliche Mitarbeiter:innenstellen (m/w/d) mit Möglichkeit zur Promotion frei: jobs.ruhr-uni-bochum.de/jobposting/b... Themen z.B. Motivation, Selbstregulation, Selbstkontrolle und Persönlichkeitsentwicklung. Bei Fragen gerne DM!