mat marques, ph.d.'s Avatar

mat marques, ph.d.

@mdmarques.com

bicycles, coffee, and social psychology. researches the causes and consequences of #conspiracytheories he/him. woiworung land. https://mdmarques.com

2,522
Followers
446
Following
531
Posts
24.09.2023
Joined
Posts Following

Latest posts by mat marques, ph.d. @mdmarques.com

Preview
How to Measure Public Support for Political Violence Abstract. With low but rising levels of violent political threats and violent acts by civilians in the United States, researchers increasingly want to meas

After nearly a decade measuring American public support for political violence, @nathankalmoe.bsky.social and I have published a somewhat comprehensive guide to measuring these attitudes. This includes historical comparisons and responses to common critiques. doi.org/10.1093/poq/...

06.03.2026 17:45 πŸ‘ 70 πŸ” 27 πŸ’¬ 1 πŸ“Œ 1

reminder that precision (or reliability) is somewhat useless without validity

05.03.2026 09:41 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
two tin cans and a piece of string

two tin cans and a piece of string

the new internet

05.03.2026 08:11 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
LinkedIn This link will take you to a page that’s not on LinkedIn

Want to come work with @olivierklein.bsky.social and me on a socially relevant topic in a warm research center full of amazing people, in the no-less international and vibrant city of Brussels? And for three years, full-time?

Then apply by April 15!

More details here: lnkd.in/erXmpcBm

04.03.2026 12:32 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

action clips for Amazon's sequel to Melania

02.03.2026 22:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
Forensic pathologist who watched Epstein's autopsy says suicide ruling 'absolutely wrong' The US Department of Justice, the FBI and New York City forensic experts might have moved on from the possibility Jeffrey Epstein did not take his own life, but many have not, and now suspicions aroun...

"When I polled Americans asking them what they thought about his death, if it was just him killing himself or if he was killed by a broader conspiracy, half the country thought it was a conspiracy," political scientist and conspiracy theory expert Joe Uscinski said.

02.03.2026 22:33 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
One hundred accounts are behind the majority of conspiracy theory content in Canada Researchers analyzed more than 14 million social media posts from accounts in Canada and found that 87 per cent of conspiratorial claims come from influencers, with just 100 users responsible for near...

β€œConspiracy theories about globalist cabals, climate hoaxes and election fraud may seem ubiquitous on social media. But a report has found that they come from a tiny minority of users…
just 100 users were responsible for almost 70% of online conspiracy posts…”

Via @nationalobserver.com #UrbanTruth

02.03.2026 06:19 πŸ‘ 385 πŸ” 197 πŸ’¬ 10 πŸ“Œ 17
Preview
Social media bans for teens lack evidence - Nature Health Online harms are an urgent societal challenge, but governments should prepare teenagers to responsibly use digital technology.

www.nature.com/articles/s44...

26.02.2026 22:24 πŸ‘ 7 πŸ” 3 πŸ’¬ 1 πŸ“Œ 1
Preview
How should Australia handle β€˜sovereign citizens’ clogging the courts? A former magistrate explains So-called β€œsovereign citizens” are using nonsense legal arguments to tie up court systems. Here are some ideas about how to deal with it.

theconversation.com/how-should-a...

27.02.2026 21:42 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
POLITICO POLITICO Expands to Australia

@manjusrii.bsky.social Some good news www.politico.eu/politico-exp...

25.02.2026 07:54 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Preview
A Potentially Infinite Number of AI Homer Simpson β€˜Cover Songs’ Have β€˜Poisoned’ Soulseek A troll is sharing more than 2,000 Homer songs masquerading as originalsβ€”and there may be plenty more on their way.

context:

www.vice.com/en/article/i...

25.02.2026 08:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
🍩 Homer's Radio - D'oh FM Homer's Radio - 24/7 Music streaming with Homer Simpson

you're welcome
homer-radio.vercel.app

25.02.2026 08:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
Australian 'immigrants' revealed to be AI creations A series of videos purporting to show migrants complaining about life in Australia is, in fact, digitally fabricated.

Accounts based in Sri Lanka are using generative AI to whip up anti-immigration sentiment in Australia on social media.
#ausnews #auspol

25.02.2026 07:45 πŸ‘ 35 πŸ” 21 πŸ’¬ 3 πŸ“Œ 4

also, I found the opening sentence amusing to someone who may be DYOR: "We are 23 of the 27 original members". What happened to the other 4?

25.02.2026 00:32 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

this is the grassy-knoll of our time

25.02.2026 00:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
A 'sticky' myth has returned as America's vaccine wars shake Australia WithΒ immunisation rates declining and outbreaks of infectious diseases like measles increasing, the consequences of vaccine hesitancy in Australia are becoming clearer.

www.abc.net.au/news/2026-02...

22.02.2026 09:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Olympic highlight in this house.

18.02.2026 17:36 πŸ‘ 7505 πŸ” 1440 πŸ’¬ 37 πŸ“Œ 51
Preview
MAHA’s next target: metals in vaccine ingredients Officials are going after metal-containing ingredients, including aluminum adjuvants. Here’s why vaccines need them

Grateful to @cenmag.bsky.social and @sarahbraner.bsky.social in particular to be able to offer my commentary about aluminum salt adjuvants here (with additional quotes from @pauloffit.bsky.social @elizabethjacobs.bsky.social):

19.02.2026 00:59 πŸ‘ 32 πŸ” 14 πŸ’¬ 2 πŸ“Œ 0
Post image

🚨 New paper out at @ajpseditor.bsky.social 🚨

Do the public hold meaningful attitudes? Using the case of abortion policy preferences, we provide strong evidence that policy prefrences can be coherent, stable over time, and causally explain vote choice.

doi.org/10.1111/ajps...

18.02.2026 23:26 πŸ‘ 16 πŸ” 15 πŸ’¬ 1 πŸ“Œ 0

"AI will cure cancer"

No bro, it is fully on cancer's side

18.02.2026 17:24 πŸ‘ 1352 πŸ” 489 πŸ’¬ 15 πŸ“Œ 10

Literally the terror content government

19.02.2026 00:03 πŸ‘ 42 πŸ” 11 πŸ’¬ 4 πŸ“Œ 0
Post image

People form beliefs not only as individual agents, but as members of social groups.

Children (4-6 years old) who belonged to a group were more convinced by evidence that supported their ingroup’s belief (and were less convinced by evidence that opposed their ingroup): www.nature.com/articles/s41...

16.02.2026 19:17 πŸ‘ 70 πŸ” 23 πŸ’¬ 2 πŸ“Œ 1
Video thumbnail

Well worth 60 seconds of your time! πŸ˜‚πŸ˜‚

12.02.2026 22:23 πŸ‘ 173 πŸ” 64 πŸ’¬ 8 πŸ“Œ 5

The history books will remember this one

12.02.2026 23:04 πŸ‘ 115 πŸ” 31 πŸ’¬ 8 πŸ“Œ 2
Post image

#auspol

12.02.2026 22:38 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
World's Dumbest People Think They Can Solve the Nancy Guthrie Ransom Case With Grok

It’s happening again.

11.02.2026 02:38 πŸ‘ 1919 πŸ” 211 πŸ’¬ 36 πŸ“Œ 22
Trying out dplyr 1.2.0 | Crystal Lewis Updating existing dplyr code in my workflow with new dplyr updates

dplyr 1.2.0 was released last week and since I use {dplyr} a lot in my work, I wanted to take some time to try some of the new functions.

This post provides some supplemental examples of the new functions, beyond what is provided in the new Posit materials.
#rstats

cghlewis.com/blog/dplyr_u...

09.02.2026 19:32 πŸ‘ 85 πŸ” 28 πŸ’¬ 4 πŸ“Œ 3
Post image

Vale, Jon Kudelka.

And as always, Fuck Cancer.

09.02.2026 01:55 πŸ‘ 459 πŸ” 142 πŸ’¬ 5 πŸ“Œ 10

the chaos that agents are about to unleash as they are increasingly used by people with diminishing technical competence is going to be incredible. will be car crashes everywhere. this guy is a VC!

09.02.2026 03:14 πŸ‘ 109 πŸ” 19 πŸ’¬ 1 πŸ“Œ 1
a table labeled "How common is your problem, how helpful is the response?"  

There are three columns labeled common, rare, and novel and two rows labeled Actual Human Expert and LLM. 

Common problem, human expert: helpful
Rare problem, human expert: more helpful
Novel problem, human expert: most helpful
Common problem, LLM: helpful
Rare problem, LLM: unhelpful
Novel problem, LLM: harmful

a table labeled "How common is your problem, how helpful is the response?" There are three columns labeled common, rare, and novel and two rows labeled Actual Human Expert and LLM. Common problem, human expert: helpful Rare problem, human expert: more helpful Novel problem, human expert: most helpful Common problem, LLM: helpful Rare problem, LLM: unhelpful Novel problem, LLM: harmful

i feel compelled to remind everyone that chatgpt/LLMs are functionally the *opposite* of an actual expert.

the more your problems are unusual or novel, the more likely LLMS are to be wrong. they are least helpful when it's most important

19.03.2025 15:14 πŸ‘ 974 πŸ” 332 πŸ’¬ 21 πŸ“Œ 39