My PhD student is recruiting participants for his study. Please repost and distribute to your networks if you have a chance!

How we spend time alone has important consequences for well-being. Over the past year and a half, I’ve delved into the fascinating literature on solitude. Two updates related to this work: - 📚 We conducted a systematic review and meta-analysis on how relatively stable personal and contextual (1/3)

New theory piece on the mechanisms of personality change, led by @wiebkeb.bsky.social! In the extended ABC consolidation model, we extend previous accounts of how change in momentary states accumulates to lead to enduring trait change. (1 / 3)

New publication: doi.org/10.1038/s415... The market for self-help products (SHP) is booming – online (e.g., apps, podcasts) and in traditional media (e.g., books). Many SHP promise psychological self-improvement and happiness increases. Within psychology, however, examinations of SHP use have been

📣 Introducing ManyLabsDACH! We are delighted to announce our new large-scale crowd-science study spanning Germany (D), Austria (A), and Switzerland (CH). Each participating lab will submit one design proposal, and all participating labs will then jointly select the design to be implemented.

My first PhD paper is out 🎉🐣 We examined transactions between Big Five traits and first sexual intercourse across up to 10 years and ~5,000 German adolescents. Extraversion stood out 🔄🧠 Agreeableness + openness showed interesting patterns as well Check them out here: doi.org/10.1177/0890...

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-...

Dauerhaftes Single-Sein belastet#Psychologie#Singles

Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding. RegCheck was built to help make this process easier. Today, we launch RegCheck V2. 🧵 regcheck.app

Very excited to share our preprint (in press at Psychological Science) titled "Associations between meat consumption and depression are small and unlikely to be causal". Have a read: lnkd.in/eM8Cd6Ss @mdkraemer.bsky.social @peterhaehner.bsky.social @wiebkeb.bsky.social @chopwood.bsky.social

3 months later, this is still unsolved? When I search for preprints I know are on psyarxiv via DuckDuckGo/Google, I don't find them (only their traces on the web), maybe because you broke working links and indexers delisted? This is really bad.

Remaining single in your twenties is linked to lower life satisfaction

New paper – and my first ✨Registered Report✨: Do hormonal contraceptives affect women’s sexuality? We studied both average effects and individual differences in effects using longitudinal data: doi.org/10.1177/2700...

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!

The Department of Psychology @uzh-ch.bsky.social has an open position for a tenured Lecturer (Research) «Psychological Data Management and -Stewardship» jobs.uzh.ch/job-vacancie... #psychjobs

So...my undergrad thesis student is doing a quality analysis of studies found in meta-analyses. She identified a few and we contacted the authors to request their effect sizes and other variables for the studies in their papers. Here's what happened: scientiapsychiatrica.com/index.php/Sc...

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...

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!!!