A nice set of R functions that determine planned sample size for two-group and paired-sample designs of multi-trial tasks. Nicely incorporates power, precision, and reliability. psycnet.apa.org/record/2027-...

Helping others for selfish reasons is judged more harshly than not helping at all. www.sciencedirect.com/science/arti...

Meta-analytic latent correlations between psychopathy and sadism: ρ = 0.94-0.98. assets.cureus.com/uploads/revi...

"We found remarkable stability of personality variance for all traits, indicating that, at the population level, people neither get more different nor more alike across the lifespan." Except that neuroticism gets more variable in teens and ext gets less variable as adults age. osf.io/preprints/ps...

People who used GLP-1 receptor agonist medications, compared to diet + exercise, to lose weight were judged more negatively by others. www.nature.com/articles/s41...

This prediction misses the draw of the in-class experience. In-person lectures and activities are more engaging and students want those experiences. I only teach in-person and I fill all my 230 seats without issue even though there is an online asynch alternative and one of my classes is at 9:30am.

Interesting approach to account for item content overlap between predictors and outcomes. These authors removed individual items from trait scores (i.e., from the predictors) that had high correlations with the outcome, and then re-ran the correlations. journals.sagepub.com/doi/full/10....

Just like our lab has found with aggression, situational ambiguity is the best experimental setting to capture individual differences in affective reactivity. journals.sagepub.com/doi/full/10....

Cross-sectional research on the Big Five "can likely use short measures without consequence, whereas longitudinal studies likely need longer measures to reliably detect effects." journals.sagepub.com/doi/full/10....

Poor sleep predicts greater antagonism on the following day. journals.sagepub.com/doi/full/10....

We should leave hypothetical vignettes out of antagonism research. Psychopathic folks were less willing to admit when they were wrong in a hypothetical situation but the effect disappeared in daily reports of whether they actually admitted when they were wrong. journals.sagepub.com/doi/full/10....

The European Journal of Personality may be my new favorite journal to read. Every issue is, without fail, chock full of some of the most interesting papers I've read in a while.

Firearm restrictions reduce violent crime in the localities in which they are enacted, a beneficial effect that can also trickle into neighboring countries. journals.sagepub.com/doi/full/10....

Do you conduct social/political psych research with non-probablity online samples (e.g., prolific, connect)? This new paper by Michael Stagnaro and colleagues is a must read! Will be adding this to my grad methods syllabus. www.nature.com/articles/s41...

The most often used measure of aggressive personality, the Buss-Perry Aggression Q, is based on items originally written so long ago that when I checked out the journal issue from the library, it still has a bookmark in it from the National Tuberculosis Association. Time for an update?

A mixed-methods approach to differentiating anger and rage, which are more alike than different. Rage seems to be a sub-type of anger, which is more characterized by "tunnel vision, loss of control, and aggression." onlinelibrary.wiley.com/doi/10.1002/...

There's no meaningful evidence that gender-affirming testosterone therapy increases anger or aggression. Despite this, unsubstantiated warnings that such therapy may elicit “increased feelings of anger or aggression” often remain in healthcare materials. www.jahonline.org/article/S105...

A topic I've really never thought deeply about until this cool paper came along, how we develop a vocal identity of the self. www.cell.com/trends/cogni...

Cyberaggression serves, in part, to facilitate optimal distinctiveness. www.pnas.org/doi/abs/10.1...

Showing remarkable restraint, Sternberg managed to only cite himself 22 times in this new paper. journals.sagepub.com/doi/full/10....

Symbols of the U.S. flag have become increasingly seen as indicators of support for 47. guilfordjournals.com/doi/abs/10.1...

We want to be friends with people we admire, but in this study of 10-14 year-olds, "few (3.1–13.4%) desired friends became reciprocated friends" over the course of a school year. :( journals.sagepub.com/doi/abs/10.1...

I love a good construct-mapping paper, in this case the construct of something being 'vintage', which reflects "three dimensions: moderate age, iconicity, and scarcity." academic.oup.com/jcr/advance-...

Greater default mode network synchrony observed during deep conversations that are characterized by feelings of connection (yay for more fNIRS work)! academic.oup.com/scan/advance...

A new theory of how people condone and even enjoy watching other people hurt each other, which finds that people "evaluated forceful acts more positively when the acts aligned with the rules, were perceived as less harmful, and were rated as more entertaining." guilfordjournals.com/doi/abs/10.1...

If there was a meaningful link between self-esteem and aggression, they woulda found it in this study and they did not (sorry I could only find a PDF link). shorturl.at/pp1VJ

The work coming out of Kevin Nunes' lab is just top-notch methods science. Here their team found that major measures of violent attitudes tend to have "correlations greater than .70" and likely aren't "practically or meaningfully distinct from one another." www.tandfonline.com/doi/abs/10.1...

APA no longer shows me the actual paper, authors, abstract etc when I click on a paper in a search engine. Everything gated now, including basic paper info. Screenshots: (1) search hit (2) resulting APA site. Tried for a few papers now. What on Earth.

Inspired by this wonderful repository, I've begun the process of making my own repository of published self/other-report measures in aggression science. It's incomplete but I hope it's a start to something useful to those who study human harm-doing. davidchester.weebly.com/aggression-s...

To improve their mood, people more frequently attempt to reduce their negative emotions than increase their positive emotions --- and the former is much harder than the latter. link.springer.com/article/10.1...

It's much harder to undo the moralization of an attitude than to get people to moralize it. psycnet.apa.org/record/2027-...

More evidence that there is no level of alcohol consumption that does not harm health. It's been wild to watch this debate unfold and to see how hard the brewing/distilling lobby tried to discredit and undermine this clear finding. www.jsad.com/doi/full/10....

Parents who engage in more monitoring of their teens' potential substance use "were not more likely to be aware when the teen had used substances." www.jsad.com/doi/abs/10.1...

Another empirical example whereby the General Aggression Model risks having broad priniciples that are so general as to be unfalsifiable. If a theory does not make the "bold" or "couragous" predictions Lakatos called for, then it likely has questionable value. onlinelibrary.wiley.com/doi/10.1002/...

Every scholarly area needs a measure repository like this.

The amount of times I hear: "I'm going to have to deviate from my preregistered analysis so what's the point?" or "preregistration limits my creativity" To which my responses are, "yes but it's informative to know where and why you deviated" and "get out of my office now" respectively.

A team of isolated crew of folks in Antarctica saw declines in individual well-being and team cohesiveness over time, which corresponded to *more* time spent in physical proximity to others --- which is nearly opposite what we see in non-isolated environments. www.pnas.org/doi/epub/10....

Really looked around LinkedIn for the first time in a while and holy cow, the amount of pro-AI posts and posts/pics explicitly made with AI (and absent any critique of doing so) tells me that it will never be the social media place for me.

Cuddy's new post claiming that power posing still has a robust evidentiary basis relied upon a literature review that "may have in part been generated by automated tools" and a result in which "the effect was in the opposite direction of the hypothesis." daniellakens.blogspot.com/2026/05/eval...

It's nice to see some pushback, like this rejoinder, against the use of behavioral economics tasks to measure aggression, as they were "designed to study economic competition" and have not been validated as meaningful proxies of antagonistic and aggressive behavior. www.pnas.org/doi/epub/10....

Interesting ways that affective prediction errors are similar to and differ from other prediction errors. psycnet.apa.org/record/2027-...

New Shiny app that helps diagnose missing data patterns and examines the implications of different handling techniques under varying conditions of missingness davidmoreau.shinyapps.io/DataPatch/.

A 2010 paper was just retracted at Experimental Brain Research for having multiple figure images that were identical to prior publications from some of the research team. Authors didn't respond to correspondence from editors. link.springer.com/article/10.1...

Opposition to this term isn't some pearl-clutching attempt to 'cancel' a naughty word that offends delicate sensibilities. It's a pragmatic push to be rid of an absurd phrase that undermines the goals of a serious area of psychological science and can harm those it attempts to describe.

Me: *clicks an OSF link* OSF: gotta be safe, can you login real quick? Me: sure, login completed OSF: cool, I have completely forgotten what link you clicked, here's your Dashboard

No robust links between the big five and structural/functional coupling in the brain. Another chapter in the yet-fruitless search for the brain basis of personality. onlinelibrary.wiley.com/doi/10.1002/...

As someone who was initially enamored with evolutionary psych, then grew to broadly oppose it, and now have found many modern parts of it valuable again, this was such a welcome read. If I ever write a book on my scholarly area, I hope it's half this good.

If you slow down human vowels, they start sounding like whale clicks. Applying linguistic tools to whales shows us that we’re much more similar to these wonderful ocean creatures than we previously believed and that their language is much more complex and structured. doi.org/10.1098/rspb...

Our inferences regarding the perceived relationships among others' personality traits tend to mirror the actual relationships those same traits exhibit in ourselves. osf.io/preprints/ps...