Jonathan Doriscar

Thank you so much Abby ❤️🥹

Thank you so much family! Hope you’re doing well!!

🎓 Paper: osf.io/preprints/os...
📺 YouTube Tutorials: youtube.com/playlist?lis...
📦 GitHub: github.com/jedoriscar/U...

#RStats #MachineLearning #SocialPsych #AcademicTwitter #DataScience

This paper was a labor of love and I’m so grateful to my brilliant co-authors Michalis Mamakos, @sylviapperry.bsky.social , and Tessa Charlesworth for their support, feedback, and generosity throughout the process.

We also include extensive annotated R code, visual walkthroughs, and a free YouTube tutorial series to make this genuinely hands-on. If you’re curious about how UML can help you uncover new patterns in your data—or just want to brush up on clustering and dimension reduction—check it out!

Each section walks through:

- what the method is

- how to implement it in R

- how to interpret the results

- real examples using Project Implicit data

We focus on 4 key UML techniques:

- K-means clustering

- DBSCAN

- Principal Component Analysis (PCA)

- Market Basket Analysis (MBA)

Social cognition research is drowning in big, complex data—but we often use the same familiar methods. Unsupervised Machine Learning (UML) gives us tools to explore patterns without predefined outcomes. We wrote this paper to demystify UML and help researchers use it meaningfully.

🧵 A brief thread on what this tutorial paper is about & why I’m excited about it:

Thrilled to share that my first first-authored publication is officially out (soon to be in press at Social Cognition)! 🚀

"From Data to Discovery: Unsupervised Machine Learning in Social Cognition"
📄 OSF preprint: osf.io/preprints/os...

Let’s gooooo! Dr. Vallabha has a nice ring to it!

Photo of Dr. Vallabha in front of her power point slides

Despite all the upheavals, some bright spots!

Yesterday, @shreevallabha.bsky.social successfully defended her dissertation; approved with no revisions! 🎉

Dr. Vallabha’s dissertation work is the most comprehensive study of moral humility to date 👀

4. With her consent, the University can confirm that Ms. Oztürk is a third-year doctoral student in good academic and administrative standing. Her research focuses on how young adults can use social media in positive, prosocial ways and she is described by her faculty as a hard-working student dedicated to her studies and the Tufts community. The University has no information to support the allegations that she was engaged in activities at Tufts that warrant her arrest and detention. The University has seen an outpouring of support for Ms. Öztürk over the last week from Tufts students, faculty and staff. These individuals have described Ms. Öztürk as a valued member of the community, dedicated to her academic pursuits and committed to her colleagues.

NEW: Tufts files a declaration in support of Rümeysa Öztürk: "The University has no information to support the allegations that she was engaged in activities at Tufts that warrant her arrest and detention." www.tufts.edu/president/sp...

It’s been a devastating 24 hours with 3 NIH grants terminated…all focused on the health and wellbeing of trans or intersex youth. If folks have any ideas of foundations that may be interested in supporting the completion of these projects so years of work aren’t wasted, please let me know. 🙏

I would like to share that the family requests donations be made to the Innocence Project (innocenceproject.org/donate/) or the American Civil Liberties Union (action.aclu.org/give/now) in lieu of flowers. 💖💐

Ad for my Society for Affective Science Symposium: Bringing Emotion Research to Life: Real World Applications

I’m giving a talk at the Society for Affective Science on Friday—my first time attending. If you’re around, come say “hi”! @affectscience.bsky.social

None of us can be sure what will “work.” You try multiple things and find your way in. Read some histories of the Civil Rights Movement by those who participated. They were never “sure” of what would work. Some campaigns fizzled out. But persistence, creativity, determination, and focus were key.

It took seeing adult bullies to understand that my childhood bullies didn’t even really want to hurt me, they just wanted to feel powerful and how I felt about it wasn’t even in the equation.

I can’t imagine someone not outgrowing that, but apparently it happens quite a lot!

Join us for our SPSP symposium! We present research on responses to personal, blatant, systemic, and historical racial prejudice. Featuring 3 in-person talks & a recorded session from Keith on Whova.
#SPSP2025

Excited to share my first ever publication recently accepted at JPSP!

This work was led by the wonderful @shreevallabha.bsky.social, see her thread below, to get a brief summary of this paper. Thanks to both Shree and @mjbsp.bsky.social for teaching me so much during this project!