Do these models allow for any decreases?
05.12.2025 20:35 β π 1 π 0 π¬ 1 π 0
The perplexing βconnected cluster axiomβ β Inverse Complexity Lab
Research group on inverse problems in complex systems and network science.
I wrote a blog post about the often stated but never explained assumption that communities in graphs should always be connected.
This is inconsistent with statistical significance and null models that underlie the most widely employed methods.
skewed.de/lab/posts/co...
04.12.2025 21:10 β π 44 π 15 π¬ 3 π 0
I can see this resonating with my colleagues who have been doing sophisticated conjoint experiments for decades...
05.12.2025 14:56 β π 1 π 0 π¬ 0 π 0
We should probably be placing incarcerated people in prisons closest to their homes.
Why?
Assigning individuals to prisons closer to their home reduces recidivism.
Really?
Yep. Being placed close to one's home increases social contacts that appear to reduce reoffending.
04.12.2025 13:46 β π 91 π 30 π¬ 4 π 1
π¨ New in Nature+Science!π¨
AI chatbots can shift voter attitudes on candidates & policies, often by 10+pp
πΉExps in US Canada Poland & UK
πΉMore βfactsββmore persuasion (not psych tricks)
πΉIncreasing persuasiveness reduces "fact" accuracy
πΉRight-leaning bots=more inaccurate
04.12.2025 20:42 β π 114 π 56 π¬ 2 π 3
Theyβre killing people as a twitter joke. Itβs depraved. Canβt let yourself lose the capacity to be appalled and disgusted and outraged by this.
05.12.2025 02:28 β π 13588 π 4213 π¬ 440 π 174
helps to think about the details like any regular crime you'd see on one of the 800 cop shows that run on TV constantly: these guys committed one set of murders, thought it over, and then decided to kill the witnesses as part of the coverup. mention of drugs is just jingling keys at this point
05.12.2025 03:14 β π 2232 π 527 π¬ 19 π 7
A blog post giving a more thorough take on survey experiments and the credibility revolution: cyrussamii.com?p=4168
03.12.2025 17:23 β π 79 π 36 π¬ 6 π 7
sex1
sex2
sex3
sex4
sex5
sex6
sex7
sex8
Boy
Girl
Boy
Boy
Boy
Boy
Girl
Girl
Boy
Girl
Girl
Boy
Boy
Boy
Girl
Boy
Girl
Girl
Boy
Girl
Boy
Boy
Boy
Girl
Boy
Boy
Boy
Girl
Boy
.
Boy
.
Girl
Boy
Boy
Boy
Girl
Girl
Girl
Girl
Boy
.
.
.
.
Boy
What if every family stops having children as soon as they have a boy? Would the sex ratio end up skewed one way or the other?
This is what it would look like for 25 random families following that rule (with a normal male/female sex ratio of 105/100.)
/1
02.12.2025 03:15 β π 37 π 8 π¬ 5 π 2
Youβre absolutely right β you are Pagliacci. It would certainly be difficult for you to attend your own performance! I should not have given such paradoxical advice, and I apologize deeply for the error. There is no excuse for my failure.
03.12.2025 01:12 β π 471 π 132 π¬ 6 π 1
Haidt is "stunned" that ChatGPT asked how it would threaten youth reveals that its plan would be what Haidt has argued in his books. The secret plan!
There should be some way to rescind the doctorate of any commentator on digital media who interprets ChatGPT output like this. I am not joking.
02.12.2025 03:07 β π 516 π 95 π¬ 26 π 34
This is amazing. If you haven't reveled in the glory that is the IPUMS international census archive, you should! Here's something I made from it: "The Rise of One-Person Households" journals.sagepub.com/doi/full/10....
01.12.2025 15:14 β π 28 π 5 π¬ 2 π 1
I think they may not actually be statistically distinguishable. But not sure... Everything in the FBES papers is SD units so I'm not sure what the SE for affective polarization in points is.
01.12.2025 16:33 β π 5 π 0 π¬ 0 π 1
We first note that hand-wringing about the decline in US college enrollments has mistakenly linked such declines to the price of four-year colleges.
But the decline is entirely driven by two-year community colleges (and by for-profit colleges). The four-year sector is the dog that didn't bark.
01.12.2025 13:34 β π 294 π 98 π¬ 10 π 11
What would you do if your 2SLS estimates are much larger than OLS, but you still have confidence in the instrument? Any tools or techniques to further probe what's going on?
01.12.2025 09:45 β π 10 π 5 π¬ 4 π 1
In that case you could try weightIng the OLS with the implicit TSLS weights. Or weight the TSLS with inverse complier scoring weights. So then if there is selection on observables etc, they should agree.
01.12.2025 11:23 β π 9 π 0 π¬ 1 π 0
Today, social media platforms hold the sole power to study the effects of feed-ranking algorithms. We developed a platform-independent method that reranks participantsβ feeds in real time and used this method to conduct a preregistered 10-day field experiment with 1256 participants on X during the 2024 US presidential campaign. Our experiment used a large language model to rerank posts that expressed antidemocratic attitudes and partisan animosity (AAPA). Decreasing or increasing AAPA exposure shifted out-party partisan animosity by more than 2 points on a 100-point feeling thermometer, with no detectable differences across party lines, providing causal evidence that exposure to AAPA content alters affective polarization. This work establishes a method to study feed algorithms without requiring platform cooperation, enabling independent evaluation of ranking interventions in naturalistic settings.
New paper in Science:
In a platform-independent field experiment, we show that reranking content expressing antidemocratic attitudes and partisan animosity in social media feeds alters affective polarization.
π§΅
01.12.2025 07:59 β π 144 π 64 π¬ 3 π 3
Does svyglm use robust standard errors? - Biased and Inefficient
For the avoidance of doubt: does svyglm() use robust standard errors? Yes!
notstatschat.rbind.io/2025/12/01/d...
01.12.2025 07:20 β π 34 π 9 π¬ 2 π 0
Zillow Removes Climate Risk Scores From Home Listings
You can still find property level climate risk scores on Redfin
Zillow Removes Climate Risk Scores From Home Listings
www.nytimes.com/2025/11/30/c...
30.11.2025 12:24 β π 143 π 56 π¬ 6 π 7
I think it computes SEs in a way that is justified by the design, but which also turns out to largely coincide with robust SEs
29.11.2025 23:50 β π 3 π 0 π¬ 1 π 0
Theyβre burying the weirdest part of this story, which is that this congressmanβs twin brother keeps trying and failing to replace him in various jobs and is now hoping to replace him in this one
29.11.2025 23:03 β π 1747 π 438 π¬ 65 π 34
Does S.F. have the βinfrastructureβ to support Lurieβs housing plan? Letβs consider
Housing opponents love to say we lack βthe infrastructureβ to accommodate new neighbors our otherwise inclusive communities. What are they talking about?
The βwe canβt possibly build more homes because our infrastructure isnβt perfectβ argument is ubiquitous in San Francisco housing debates.
Itβs effectively saying βsorry, no home for you until all infrastructure is perfect β go live 100 miles away.β
The argument is also factually baseless:
29.11.2025 16:08 β π 157 π 25 π¬ 2 π 6
The surprising crab-trapβpulling behavior is described in this article: onlinelibrary.wiley.com/doi/10.1002/...
We recently published a paper on how animal tool use is conceptualized, offering a framework to make sense of its different forms ππ www.cambridge.org/core/journal... #evosky #philsci
27.11.2025 17:17 β π 30 π 13 π¬ 0 π 3
We shouldnβt be too quick to see inconsistent beliefs as evidence of irrationality.
Cool research by @bayesandbounds.bsky.social & @tanialombrozo.bsky.social suggests inaccessibility of an apparently conflicting belief can lead to (temporary, quickly resolved) inconsistency:
buff.ly/QncPtjq
29.11.2025 16:09 β π 7 π 3 π¬ 0 π 0
Satellite image of a commercial development along a stroad. On the left there's a big box store that says "Property taxes: $102,485, Parcel Size: 17,766 meter square. On the right there's two apartment buildings that read "Property taxes: $626,002, Parcel Size: 10,930 meter square"
Minimum parking requirements create financially insolvent land use patterns.
The two apartment buildings on the right generate six times more in property taxes than the big box store on the left, while occupying almost half the space!
#BlackFridayParking
28.11.2025 21:07 β π 112 π 45 π¬ 1 π 4
Pete Hegseth is Secretary of Defense *because* he championed war criminals. Literal war criminals convicted of heinous offenses in US courts martial. Got Trump to pardon some in term 1.
Not in spite of, because.
That's what Trump appointed, and what 50 GOP Senators (plus Vance) voted to confirm.
28.11.2025 18:34 β π 403 π 127 π¬ 14 π 1
Programming Languages Postdoc @ UIUC
Trans girl π³οΈββ§οΈ
still here~ despite it all
https://kirancodes.me
Author: Verified: How to Think Straight, Get Duped Less, and Make Better Decisions about What to Believe Online (University of Chicago Press).
Researcher, infolit/misinfo/rhetoric/civic reasoning. Currently researching AI as tool for critical thinking.
Assistant Professor @ Johns Hopkins University | Prev: Stanford & EPFL | https://piccardi.me/
Energy Economist | PhD @ UC Irvine, Class of β21 | currently employed at Kairos Power (posts do not imply endorsement of employer) | Albuquerque, NM
https://github.com/a-g-benson
AI, forecasting, policy, social science
Loves: humility, kindness, high decouplers
China, politics, climate change. Views my own. Reposts are indeed endorsements. Why would I repost if I disagree? https://gabriel965.substack.com/
Senior Fellow @justsecurity.bsky.social. Bio: https://www.justsecurity.org/author/joscelyntom/
Former J6 Committee Senior Professional Staffer & principal drafter of committeeβs final report. Fan of Tom Paine.
Statistics, Data Science, and R enthusiast.
Assistant professor at Duke-NUS medical school. Mostly interested in health economics, biostats and clinical informatics.
Associate Professor of Statistics
afranks.com
Digitization. Assistant Professor at UCL School of Management. CESifo and CEPR Research Affiliate. Toronto PhD. Repost $\neq$ endorsement.
danielershov.com
PhD student doing urban econ and industrial organization at Duke. Former highest paid cashier in the Midwest; former RA at Eviction Lab; Macalester College. Not a real bus driver
Teaches US History at Willamette Univ. Working on a book about the long history of the US Right. https://rightlandia.ghost.io/
Statistical geneticist. Associate Prof at Dana-Farber / Harvard Medical School.
www.gusevlab.org
Navy combat veteran and retired NASA astronaut. Husband to @GabbyGiffords.bsky.social. United States Senator for the great state of Arizona.
Your U.S. Consumer Product Safety Commission. Product safety info, data, and recalls. Standing for safety since 1972. Official account of the USCPSC. HQ: Bethesda, MD.
Subscribe for recall emails on CPSC.gov.
Report unsafe products on SaferProducts.gov