Register here: caltech.zoom.us/webinar/regi... #ElectionScienceOfficeHours @jnkatz.bsky.social @rmichaelalvarez.bsky.social @caltech.edu @caltechlcssp.bsky.social #CaltechElectionIntegrity

Welcome! You are invited to join a webinar: A Conversation with Caltech's Jonathan N. Katz: State Redistricting Impacts Around the Nation. After registering, you will receive a confirmation email abou...

Please join us on Tuesday, October 28, 2025 at 1:00pm Pacific for the next episode of Election Science Office Hours, a webinar series presented by the Caltech Election Integrity Project and moderated ...

caltech.zoom.us

Every Californian with an email address and an internet connection can now visit California’s Bookshelf and access more than 300,000 ebooks and audiobooks. www.library.ca.gov/uploads/2025...

Innovation is afoot in the ski industry. BOA boots are changing skiing ... and ski racing. www.skimag.com/gear/boa-ski...

BOA Boots Are Changing Skiing—So Why Won’t Racers Wear Them?

Skiers swear by BOA technology, yet the world’s best racers refuse to make the switch. Do they know something we don’t?

skimag.com

We are very happy to publish the "National Elections Database," including the results of 1,023 presidential and 2,962 parliamentary elections conducted worldwide since 1946! www.nationalelectionsdatabase.com with Benjamin Marx and Vincent Rollet

Happy 10 year birthday to Science Advances! Had fun writing this up with our editor, Laura Remis. @science.org www.science.org/doi/10.1126/...

10 years of progress and change

Ten years ago, Science Advances published its very first issue (www.science.org/toc/sciadv/1/1). It was a monthly issue and had 12 papers in total. Since then, much has happened for the journal, for s...

science.org

538-style poll collection has now been recreated by a small group of fans and former staff. all fully transparent and public now. return of live public aggregation is imminent docs.google.com/spreadsheets...

Polls

docs.google.com

I got laid off today, with the rest of 18F. 18F was an elite federal software shop. We made gov't websites work better, more efficiently for the American people. We saved taxpayers from getting screwed over by contractors. And were fired for it. We made this website to tell our story: 18f.org

#UMISR: Preserve At-Risk Government Data! DataLumos, an open-access archive at ICPSR, is working to preserve/share critical govt data. Help keep the data accessible. Donate: datalumos.org Explore & contribute: myumi.ch/egrbW Volunteer: icpsr-data-rescue@umich.edu #DataPreservation #SocialScience

Rdatasets is a collection of 2300 free and documented datasets in CSV format. It's a great resource for teaching and exploration! The new `get_dataset()` function from the {marginaleffects} 📦 allows you to search and load them directly in #Rstats. vincentarelbundock.github.io/Rdatasets/ar...

All - @science.org now has a @bsky.app share button! Enjoy!

Looking for free, short readings on elements of congressional politics for your course? Check this out. stevesnotes.substack.com

Steve's Notes on Congressional Politics | Steven S. Smith | Substack

Insightful briefs on the politics of the the U.S. Congress. Click to read Steve's Notes on Congressional Politics, by Steven S. Smith, a Substack publication with hundreds of subscribers.

stevesnotes.substack.com

If you have an issue where Dropbox is constantly syncing while @posit.co #RStudio is open, one solution is to run the following code in Terminal: find "Dropbox" -type d -name ".Rproj.user" -print0 | while IFS= read -r -d $'\0' folder; do xattr -w com.dropbox.ignored 1 "$folder"; done #rstats

Last week, Jacob Morrier and I presented about work that dramatically speeds up probabilistic record linkage using GPU acceleration. Documentation and code for Fast-ER is available, fast-er.readthedocs.io/en/latest/ But better yet, watch the video! youtu.be/wsv__0a_KDY?...

Fast ER GPU Accelerated Record Linkage in Python by Dr R Michael Alvarez and Jacob Morrier CalTech

YouTube video by Data Analytics Colloquium

youtu.be

Voters are mostly partisans who rationalize, swing voters are often ignorant and voters project their views onto their candidates. But this has always been true! The media was better once, but there was no golden age. Most of their grandparents did not read Walter Lippmann's column.

jamelle@jamellebouie.net · 2y ago

we're cooked

Very nice example of how useful comparison (or trend calculation) usually needs something more than coefficients. They have a nice page on the general idea that is hidden down in the thread: ourworldindata.org/age-standard...

Saloni@scientificdiscovery.dev · 2y ago

Americans are now one-third less likely to die from cancer at the same ages as Americans in 1990

I'm teaching a grad seminar this winter on Prediction for Decision-making. We'll look at what it means to make good predictions for decision-making from various angles, with a focus on decisions for & about people. Reading list: statmodeling.stat.columbia.edu/2024/12/06/n... Suggestions welcome!

Our JSS article is out! And now I get to focus on {marginaleffects} 1.0.0. Stay tuned. www.jstatsoft.org/article/view...

This is good advice. People with stable handles, bios, and a post or two present well to would-be followers. Consider also a photo or thoughtful logo of yourself.

Magnus B Rasmussen@magnusrasmussen.bsky.social · 2y ago

Please fix your handle and bio before you start following people. Makes it a lot easier to know whether people should follow you or not.

If you're interested in trying out LLMs in #rstats but don't know where to begin, I've added a few two vignettes to elmer: elmer.tidyverse.org/articles/elm... and elmer.tidyverse.org/articles/pro...

New notebook: Sample Size Calculations in #RStats : Money and Power arelbundock.com/posts/money_...

Boosting Anton's starter pack to #StatsSky and #polisky. Lots of people worth following here. bsky.app/starter-pac...

Political Methodology

Join the conversation

bsky.app

Great to see @aleximas.bsky.social and gang of coauthors measuring salience *independently of choice* with an early well-trained algorithm (from @caltech.edu btw) that predicts visual attention for any image (a la Li and me QJE academic.oup.com/qje/article-...)

Alex Imas@aleximas.bsky.social · 2y ago

100% This is why it’s important to understand people’s mental representations of the problem they *think* they’re solving before inferring preferences. Mental representations differ systematically from actual decision depending on constraints/learning environment papers.ssrn.com/sol3/papers....

After a review process so long and intensive that the title changed twice, I'm excited/relieved that "How to Distinguish Motivated Reasoning from Bayesian Updating" is accepted at @polbehavior.bsky.social. osf.io/preprints/os... Here is how it's relevant for your Thanksgiving dinner 🦃👇

How does Approximate Bayesian Computation *ABC) work? @rabaath.bsky.social has a classic nice simple intro the ABC using the problem of infering the number of socks in a sample of laundry. There's a movie and a page with all the code. www.sumsar.net/blog/2015/07...

Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman: The Movie

This is a screencast of my UseR! 2015 presentation: Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman. Based on the original blog post it is a quick’n’dirty …

sumsar.net

Yes, it was an anti-incumbent environment, *globally*—but the US had weathered the pandemic economy so much better than everywhere else, it was totally reasonably to think that the incumbent party could prevail. It was not a forgone conclusion. It was close, but still decisive against incumbents.

Now that @jacksonmatthewo.bsky.social has arrived, it’s a real network

Since it is inefficient to attempt to educate every reviewer individually, I am yeeting into your feed this clear paper from Gelman, Hill, and Yajima on how Bayesians can do even better than correcting for multiple comparisons. arxiv.org/abs/0907.2478

Why we (usually) don't have to worry about multiple comparisons

Applied researchers often find themselves making statistical inferences in settings that would seem to require multiple comparisons adjustments. We challenge the Type I error paradigm that underlies t...

arxiv.org

I'm writing up a brief history of the tidyverse? What do you want to know about it? #rstats