Johannes Zimmermann

Wann gilt jemand als psychisch krank? Forschende erläutern Vor- und Nachteile des aktuellen Diagnosesystems und ordnen das Potenzial alternativer Ansätze ein: sciencemediacenter.de/angebote/psy...

Construct validity is a cornerstone of psychological science.

But too often, construct validation practices fall short, leaving uncertainty about what our measures really capture.

Why is that?

We (@stmllr.bsky.social) tackle this question in our 𝗻𝗲𝘄 𝗽𝗿𝗲𝗽𝗿𝗶𝗻𝘁:

🧵…

Interesting new special issue in Psychological Assessment.

Edited by Kristin Naragon-Gainey and @kstanton.bsky.social

Here's their overview paper: psycnet.apa.org/record/2026-...

And here's our contribution, which will win us no friends:
psycnet.apa.org/record/2026-...

Zeitschrift für Klinische Psychologie und Psychotherapie: Vol 54, No 3 Can't sign in? Forgot your password?

✨ Neu erschienen: Special Issue „Personality Dynamics in Clinical Psychology and Psychotherapy“ (KPP), herausgegeben von Remmers, Jauk & @ehrenthal-lab.bsky.social. Ich war mit u.a. @jzpsych.bsky.social am Beitrag „Interpersonal Dynamics“ beteiligt.
🔗 econtent.hogrefe.com/toc/zkp/curr...

Cover Special Issue Personality Dynamics Zeitschrift für Klinische Psychologie und Psychotherapie, 55,3. Guest Editors: Carina Remmers, Johannes C. Ehrenthal, Emanuel Jauk

Special Issue 'Personality Dynamics'! We are happy to share this special issue from the Zeitschrift für Klinische Psychologie und Psychotherapie looking at interpersonal dynamics, motivational conflicts, and personality functioning in clinical psychology and psychotherapy.

psycnet.apa.org/doi/10.1037/...

Unsere Gedanken über den Nutzen neuerer Modelle zur dimensionalen Persönlichkeit(sstörungs)diagnostik für die forensische Glaubhaftigkeitsbegutachtung. In der FPPK, mit Johannes Zimmermann @jzpsych.bsky.social

link.springer.com/article/10.1...

A year ago, 20 German personality psychologists came together under the leadership of John Rauthmann to assess the status of the field (not only from a German perspective). An English-language version of this paper (in press at Psychologische Rundschau) is now available:

New paper out in European Psychologist 📄⏰: "A Hitchhiker's Guide to Translation." In a collaborative project with spokespersons of many subfields of the German Psychological Society (DGPs) we explore ideas for connecting basic psychology and clinical psychology. econtent.hogrefe.com/doi/10.1027/...

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

Psychological internet interventions are effective in people suffering from depressive symptoms who do not meet criteria for depression yet. Particularly for those with at least moderate symptom severity @mathiasharrer.bsky.social @toshi-frkw.bsky.social

bit.ly/4kcYMxS

Our paper

"Why do judgments on different person-descriptive attributes correlate with one another? A conceptual analysis with relevance for most psychometric research" (osf.io/preprints/ps...)

has just been accepted for publication by Collabra: Psychology.

Comparing structural models for internalizing pathology: Latent dimensions, classes, or a mix of both? In recent decades, the conceptualization of internalizing problems has changed from categorical to dimensional and hybrid approaches. However, most st…

New paper comparing latent dimensional, categorical, and hybrid models of internalizing psychopathology.

Dimensions win out, no surprise there. But the use of skewed latent dimensions as a comparison is a nice addition.

www.sciencedirect.com/science/arti...

Comparing Structural Models for Internalizing Pathology: Latent Dimensions, Classes, or a Mix of Both? In recent decades, the conceptualization of internalizing problems has changed from categorical to dimensional and hybrid approaches. However, most st…

Comparing Structural Models for Internalizing Pathology: Latent Dimensions, Classes, or a Mix of Both?

www.sciencedirect.com/science/arti...

A Nuanced Perspective on How Item Features Are Associated With Different Forms of Agreement While personality research has repeatedly shown that self-, meta- and other-ratings of personality are correlated to a considerable degree, relatively little is known about how item features determine...

New in personality psychology, from Nele Wessels, Daniel Leising @leising.bsky.social, and Johannes Zimmermann @jzpsych.bsky.social: A Nuanced Perspective on How Item Features Are Associated With Different Forms of Agreement doi.org/10.1525/coll...

"Large pre-post treatment effects" 🫢

If you're into ambulatory assessment of personality and psychopathology, I'll provide some distractions for your timeline this week.

First up, our (@whitneyringwald.bsky.social @jzpsych.bsky.social) paper on Measuring Psychopathology in Daily Life is now in a journal.

link: doi.org/10.1177/2167...

Das Netzwerk Nachhaltige Wissenschaft (NNW) hat seine zweite Stellungnahme zur sogenannten Exzellenzstrategie veröffentlicht:

netzwerk-nachhaltige-wissenschaft.de?p=449

We evaluated the German translation:
doi.org/10.31234/osf...

@tkaiser.science et al. (2021). The distinction between psychometric and clinimetric approaches will not move the field forward. doi.org/10.31234/osf...

A Clinical‐Empirical Model of Personality: Life after the Mischelian Ice Age and the NEO‐Lithic Era ABSTRACT A theory of personality should lead to both accurate prediction and interpretive understanding. Aside from its empirical uses, a personality theory should provide a grammar that allows perso...

Sounds familiar. In search of a model of personality that embraces deep-seated fears and motivations: doi.org/10.1111/j.14...

1/ Our paper "A large-scale, gamified online assessment of first impressions: The Who Knows project" has just been accepted at Behavior Research Methods! 🎉
Check out the preprint here: osf.io/preprints/ps...
Special credit to Richard Rau for envisioning & spearheading this innovative project & app!

In any case, I fully agree that we should make the conceptual implications of using OW explicit in the manuscript (i.e., estimating ATO instead of ATE). We will also consider looking at the results of different strategies as a robustness check. (3/3)

… resulting in extreme weights that have a strong influence on the estimated model parameters. This was the case in our data: For example, the variance inflation factor was 1.20 for IPW, but only 1.09 for OW. Here are the distributions: (2/3)

Thank you very much for your helpful feedback! We preferred overlap weights (OW) mainly for statistical reasons. Inverse probability weights (IPW) often have problems because some individuals' propensity scores are too close to 0, … (1/3)

Hier ein Pre-Print zu den ersten Outcome-Ergebnissen der DPG-Praxisstudie.
Es ist ein erster Entwurf. Wir freuen uns über konstruktives Feedback.

osf.io/preprints/ps...

If you want to do ambulatory assessment (e.g., EMA) in applied settings, say with patients, how many observations do you need to get a reliable estimate of a person's mean, variability, or correlation?

We (@jzpsych.bsky.social & Florian Scharf) ran some simulations to get the answer...a🧵

Development and Initial Evaluation of the German Version of the Hierarchical Taxonomy of Psychopathology Self-Report (HiTOP-SR): http://osf.io/dc8u6/

"In diesem Artikel wird das HiTOP-Modell erstmals in
umfassender Weise für den deutschsprachigen Raum zugänglich gemacht. ... erläutern wir zunächst die methodischen Grundprinzien
von HiTOP .. und veranschaulichen den Einsatz von HiTOP in der diagnostischen Praxis"

Hierarchische Taxonomie der Psychopathologie (HiTOP): Ein neues Modell zur Beschreibung psychischer Probleme: http://osf.io/kp8yx/