Alex Mackiel

@amackiel.bsky.social

PhD student in Developmental Psychology at The University of Chicago studying social cognitive development: relationships and morality.

Our paper finding that infants infer helpers’ relationships, and not their dispositions, is now out in PNAS! Sharing in case anyone needs something to read on the way home from #CDS2026 ;) doi.org/10.1073/pnas...

PNAS

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

doi.org

Lindsey Powell@lindseypowell.bsky.social · last yr.

New preprint! Led by Bill Pepe, with @brandonwoo.bsky.social and @ashleyjthomas.bsky.social. We asked if infants think helping and hindering stem from actors' dispositions (i.e. good/nice v bad/mean) or their social relationships, by testing expectations for future behavior: osf.io/preprints/ps...

I’m excited to present my research on how kids (Thursday) and adults (Saturday) reason about help requests as diagnostic cues of friendship strength at #SPSP2026 with the DIBS Lab (PI: Alex Shaw)

Katie Vasquez@ktvasq.bsky.social · 5mo ago

Excited for #SPSP2026 in my home city! The UChicago DIBS Lab (PI: Alex Shaw) has lots of presentations and we would love to see you there! Come learn more about friendship, morality, leadership, intellectual property, and "coolness". @spspnews.bsky.social @amackiel.bsky.social

A flyer advertising presentations from members of the UChicago DIBS Lab at SPSP. Speakers include Alex Mackiel, Katie Vasquez, Alex Shaw, Erin Kim, Isabella Ramkissoon, and Yutong (Iris) Chen. Find more information on Whova: https://whova.com/portal/webapp/WMg9c84cPufsiZYYC3hP/Agenda

Sometimes people say its fair for those with advantage to get more (best office to the CEO...); other times, the opposite seems more fair (... charity to the needy). In this new work, Arthur and Xavier try to explain why. See the preprint link and explainer thread below: osf.io/preprints/ps...

OSF

osf.io

xavier roberts-gaal@xrg.bsky.social · last yr.

the functional form of moral judgment is (sometimes) the nash bargaining solution new preprint👇

figure 2 from our preprint, reporting the results from two experiments 

we measure moral judgments about dividing money between two parties and manipulate the degree of asymmetry in the outside options each party has

we find that moral judgments track predictions from rational bargaining models like the nash bargaining solution and the kalai-smorodinsky solution in a negotiation context

by contrast, in a donation context, moral intuitions completely reverse, instead tracking redistributive and egalitarian principles

preprint link: https://osf.io/preprints/psyarxiv/3uqks_v1