Jonathan Mummolo

Jonathan Mummolo

@jonmummolo

Followers6.3K
Following1K

Political scientist @Princeton researching policing, bureaucracy, political behavior. Former reporter @washingtonpost. https://t.co/Y2AyJA5JOP https://t.co/xZl4jtfnJB

Princeton, NJ
Joined on February 26, 2009
Statistics

We looked inside some of the tweets by @jonmummolo and here's what we found interesting.

Inside 100 Tweets

Time between tweets:
a day
Average replies
5
Average retweets
43
Average likes
140
Tweets with photos
11 / 100
Tweets with videos
0 / 100
Tweets with links
0 / 100

Quoted @jonmummolo

A flawed study on racial bias in policing has been retracted. Some claim the retraction is political. It is not. Over 800 scholars endorsed this letter explaining the fundamental scientific errors. @dean_c_knox https://t.co/Vu6Xo21vIy

Many dismiss concerns over systemic racial bias in #policing, with some calling it a “myth.” These claims rest on deeply flawed science, according to @jonmummolo and 800 cosigners of this letter. 👇 https://t.co/oiJ32pWghA

By popular demand, ALL content of the #CausalDiagramsCourse is now freely available. Interested in #causalinference with DAGs and SWIGs? Join the almost 50,000 people who have already taken the course. Thanks to @edXonline for making online learning accessible for everybody.

Quoted @jonmummolo

A flawed study on racial bias in policing has been retracted. Some claim the retraction is political. It is not. Over 800 scholars endorsed this letter explaining the fundamental scientific errors. @dean_c_knox https://t.co/Vu6Xo21vIy

Research on policing is hard. Data is scarce and the issues are complex. But we cannot fill gaps in knowledge with faulty science. This retraction is an important step toward setting the record straight. https://t.co/6Vyll19IMv

Quoted @jonmummolo

A flawed study on racial bias in policing has been retracted. Some claim the retraction is political. It is not. Over 800 scholars endorsed this letter explaining the fundamental scientific errors. @dean_c_knox https://t.co/Vu6Xo21vIy

Over 800 academics have signed on to this op-ed arguing that the Johnson-Cesario study claiming to find no racial bias in police shootings is not just scientifically flawed, but fatally so. I’ll have more on all of this next week. https://t.co/txCQ3tLRDs

We applaud the authors for taking this step. Unfortunately, corrections to science rarely see as much attention as initial errors. We encourage those that disseminated the study to correct the record for their readers. @nytimes @WSJ @TheEconomist @Reuters @NPR @AFP @ManhattanInst

The study was framed as evidence against racial bias in police shootings. But as the authors now note, the data and methods are "inadequate to address racial disparities in the probability of being shot." https://t.co/9DuF1zKb7u

Signatories span business, comm, CS, criminal justice, criminology, econ, engineering, gender, geography, history, law, math, medicine, natural sciences, polisci, psych, public health, public policy, race, sociology, and stats: https://t.co/FOxBgPMQx5

A flawed study on racial bias in policing has been retracted. Some claim the retraction is political. It is not. Over 800 scholars endorsed this letter explaining the fundamental scientific errors. @dean_c_knox https://t.co/Vu6Xo21vIy

Quoted @justingrimmer

The "deconfounder” promises to “require weaker assumptions than traditional causal inference” with multiple causes. In a new paper we (@dean_c_knox,@b_m_stewart) prove the algorithm is extraneous: if the deconfounder works, naive regression does too 1/N https://t.co/WJlnbwJRPe https://t.co/osdyo8StYe

The "deconfounder” promises to “require weaker assumptions than traditional causal inference” with multiple causes. In a new paper we (@dean_c_knox,@b_m_stewart) prove the algorithm is extraneous: if the deconfounder works, naive regression does too 1/N https://t.co/WJlnbwJRPe https://t.co/osdyo8StYe

A prominent machine learning technique hailed as a major breakthrough for causal inference is, under ideal conditions, basically just OLS. Important new paper from @justingrimmer @dean_c_knox @b_m_stewart https://t.co/jAo7gYcFXI

Quoted @RetractionWatch

Authors of study on race and police killings ask for its retraction, citing “continued misuse” in the media https://t.co/JwOKAMMdhE https://t.co/rG6MqSrLrE

Authors of study on race and police killings ask for its retraction, citing “continued misuse” in the media https://t.co/JwOKAMMdhE https://t.co/rG6MqSrLrE

This is huge. Authors of bad PNAS study ask to retract study b/c they claim *media* keep misusing it. There's a lot to unpack here. https://t.co/0BFzeLL4lC

@RetractionWatch @jonmummolo @MayBerenbaum @PNASNews @HMDatMI We appreciate the authors’ willingness to take this action. We hope readers and policymakers will now cease relying on this paper when considering the critical issue of racial bias in policing.

Authors of study on race and police killings ask for its retraction, citing “continued misuse” in the media https://t.co/JwOKAMMdhE https://t.co/rG6MqSrLrE

Authors of study on race and police killings ask for its retraction, citing “continued misuse” in the media https://t.co/JwOKAMMdhE https://t.co/rG6MqSrLrE

Quoted @RiceWitherspoon

in honor of @RuPaulsDragRace Canada airing tonight & one of my new fav queens @onlinekyne, I made a video explaining "collider bias," a phenomenon where statistics can actually hide bias - for example, in statistics about police use of force among different racial groups! (1/2) https://t.co/M16AYFntdH

Love this explainer! @jonmummolo @dean_c_knox @conjugateprior https://t.co/McYIPbpFZi

In the inaugural post of the new authors' blog for @apsrjournal: @dean_c_knox @conjugateprior and @jonmummolo discuss their new method for estimating racial bias and findings that uncover severe levels of discriminatory police violence in NYC: https://t.co/XB5cbLuQiF

"The @Princeton University Board of Trustees has today voted to remove Woodrow Wilson’s name from the University’s School of Public and International Affairs, which will now be known as the Princeton School of Public and International Affairs.”

This was the right thing to do. 👏 https://t.co/PesqfIm4ii

"The @Princeton University Board of Trustees has today voted to remove Woodrow Wilson’s name from the University’s School of Public and International Affairs, which will now be known as the Princeton School of Public and International Affairs.” This was the right thing to do. 👏 https://t.co/PesqfIm4ii

Quoted @dean_c_knox

The worst part of this critique is how it treats racial bias like a game with numbers. We use statistics to seek the best answers to serious questions—not to construct silly logic puzzles about knife-edge scenarios. It’s offensive to use this issue to try and score cheap points.

There is (still) no math error in our paper. But much more importantly, this: https://t.co/l6pi7UQOCM

Quoted @jgaeb1

Thanks for clarifying @jonmummolo. Even if there’s unobserved confounding of the mediator and outcome, the assumptions you invoke are still *not* necessary. Here’s a proof: https://t.co/7xGvXo7BWj. And here’s the intuition (thread). https://t.co/34xfqxunpV

Our critics again claim to find an error in our paper on racial bias in policing. Yet again, the only error is in their reading comprehension. This 2nd “counterexample” is another attempt to move goalposts & sow confusion…this time by assuming away bias in police stops. (thread) https://t.co/bZ0syP4TKi

Quoted @laurabronner

We have evidence of racial discrepancies in police use of force. But some studies miss the extent of the problem by using data that's already biased. https://t.co/E61goauUnq @jazzmyth's awesome chart helps me explain this paper by @dean_c_knox, @conjugateprior and @jonmummolo: https://t.co/V035opNF9z

We have evidence of racial discrepancies in police use of force. But some studies miss the extent of the problem by using data that's already biased.

https://t.co/E61goauUnq

@jazzmyth's awesome chart helps me explain this paper by @dean_c_knox, @conjugateprior and @jonmummolo: https://t.co/V035opNF9z

Awesome @FiveThirtyEight explainer of our new @apsrjournal paper on racial bias in policing. Thanks for the careful walkthrough, @laurabronner! paper: https://t.co/D30PjorcNz https://t.co/VR3Hf4xbEe

Record good day for DAGs on here imo

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