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Chris Martin

@chrismartin76

Psychology. Education. Happiness. Piano. PhD (sociology) @ Emory. Masters (HCI; psychology) @ William and Mary + Georgia Tech. BA (psychology; music) @ Davidson College.

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Latest posts by Chris Martin @chrismartin76

Much as Soviet propaganda accurately depicted the United States as a racially tiered society, Iranian propaganda has accurately depicted the Trump administration as entirely run by pedophiles.

10.03.2026 22:35 πŸ‘ 528 πŸ” 148 πŸ’¬ 7 πŸ“Œ 3

Is it sexist to say that men are more likely to be colorblind, die of COVID, be tall, die young, and so on? No because the data are clear. Someday the empirical data may support the male variability hypothesis. Or they may not.

10.03.2026 21:35 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
New course on generative AI for behavioral science | Statistical Modeling, Causal Inference, and Social Science

A few people have asked for the syllabus from my grad seminar on Generative AI for social science -- just posted it here:
statmodeling.stat.columbia.edu/2026/03/10/n...

10.03.2026 15:44 πŸ‘ 16 πŸ” 12 πŸ’¬ 3 πŸ“Œ 0
Full Transcript: President Summers' Remarks at the National Bureau of Economic Research, Jan. 14 2005 | News | The Harvard Crimson The following is a transcript of University President Lawrence H. Summers’ remarks delivered at a conference at the National Bureau

In his public talk, I think the point he was trying to make is that the difference in variance could explain the difference in gender representation. We now know he may have had an ulterior motive but note that he had three hypotheses:
www.thecrimson.com/article/2005...

10.03.2026 15:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Keep calm and be transparent: advice from scientists who retracted their papers Retractions correct the scientific record, but they have stigma attached to them. Some in the research community want that to change.

We're thrilled to announce the Ctrl-Z Award, a US$2,500 prize for researchers β€œwho discover substantial errors in their published work and take meaningful steps to correct the scientific record."
Covered by @nature.com today; read more here: centerforscientificintegrity.org/2026/03/10/a...

10.03.2026 15:37 πŸ‘ 256 πŸ” 119 πŸ’¬ 3 πŸ“Œ 12

This is now called the male variability hypothesis. You can find the corresponding articles on Google Scholar. Some evidence supports it. Some doesn’t

10.03.2026 15:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

He said there are three possible reasons for the difference in representation. One of them is that the male variance in intelligence. This means more men in the top and bottom tails.

10.03.2026 15:15 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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Early Iran strikes cost $5.6 billion in munitions, Pentagon estimates The figure, accounting for the war’s first two days, is likely to intensify concerns in Congress that U.S. forces are churning through a scarce supply of advanced weaponry.

The Pentagon calculated it was spending $1 billion a day on Trump and Netanyahu’s war. The truth? It was $3 billion…and that’s just for munitions.

Plus they’ve alarmed everyone by burning through scarce munitions in a matter of days.

10.03.2026 11:09 πŸ‘ 1150 πŸ” 557 πŸ’¬ 43 πŸ“Œ 49

If I recall correctly he said that the variance was greater for men not that the mean was different.

10.03.2026 11:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0

The climate is similar to the rest of the South so…

09.03.2026 23:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

NO NO NO YOU DON’T

GUYS LET ME PLEASE SPREAD THE GOSPEL OF FREE TAX USA

federal is free, state is $16, handles even my chaotic freelancer taxes just fine, same step-by-step β€œdesigned for normies” kind of interface as TurboTax but NOT EVIL

tell everyone you know

www.freetaxusa.com

09.03.2026 01:26 πŸ‘ 12394 πŸ” 7503 πŸ’¬ 13 πŸ“Œ 3

It used to be that way but now there are probably 10,000 pianists who can play it.

09.03.2026 17:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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holy shit

09.03.2026 01:20 πŸ‘ 14058 πŸ” 3064 πŸ’¬ 234 πŸ“Œ 598
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NBC’s Richard Engel: β€œThe White House meme campaign is outraging many former US military commanders… they say only someone who has never really seen combat would think it’s a joke and put out material like this.”

09.03.2026 16:33 πŸ‘ 16533 πŸ” 6890 πŸ’¬ 967 πŸ“Œ 501

I live in Atlanta and there's pretty much nothing I can think of. All of the food that I love here is non-native.

09.03.2026 17:25 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

What can I say? I write my skeets the same way I write my discussion sections in journal articles.

09.03.2026 17:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

If you really enjoy movie stunts, it's a way to just watch stunts without having to deal with the movie.

09.03.2026 16:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

He is the Elvis Presley of Gen Xers

08.03.2026 17:32 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I did not have 'Ricky Martin performing at the T20 World Cup' on my bingo card.

08.03.2026 14:48 πŸ‘ 2 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Highest individual scores T20WC finals

Highest individual scores T20WC finals

Stunning from Samson πŸ™Œ

08.03.2026 14:51 πŸ‘ 4 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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India’s best batter is Sanju Samson, a Christian, and a poke in the eye of Hindu nationalism.

08.03.2026 14:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I read a Lorrie Moore novel once. It was so painful to watch the protagonist’s journey, I didn’t read any others.

08.03.2026 14:05 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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What is even happening in the world of children’s books?

08.03.2026 13:11 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1
March 6
The Biblical Case For Ditching Social Justice
FEDERALIST
Federalist Radio Hour >

March 6 The Biblical Case For Ditching Social Justice FEDERALIST Federalist Radio Hour >

Today’s episode of β€œNot The Onion.”

06.03.2026 17:27 πŸ‘ 397 πŸ” 103 πŸ’¬ 16 πŸ“Œ 24
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The Most Chilling Detail in the U.S. Attack on an Iranian Naval Ship The Iranian warship was taking part in an international exercise with many other countriesβ€”including the United States.

This is a chilling crime. A shame on our country. The Iranian ship was unarmed. The US knew this. The sailors were murdered by our navy, and the survivors were left to die at sea.
newrepublic.com/post/207429/...

06.03.2026 12:29 πŸ‘ 9852 πŸ” 4704 πŸ’¬ 559 πŸ“Œ 637
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An Assertive Supreme Court Turns to Curbing State Courts

Opus Dei run SCOTUS turns to judicial authoritarianian to silence state courts and put them in their place. www.nytimes.com/2026/03/05/u...

06.03.2026 12:05 πŸ‘ 24 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
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Not just spontaneous remission: Time-dependent and independent effects in pre-intervention symptom reduction Psychological symptoms tend to change over time, even in the absence of clinical intervention. For example, self-ratings are often higher at screening…

πŸŽ‰ I just published my second paper! Woo!
In psychotherapy trials we often see that symptoms reduce between screening and start of treatment. A plausible idea about that is that patients self-refer when their fluctuating symptoms are extra bad. We checked! (we tried to check) //

05.03.2026 09:11 πŸ‘ 18 πŸ” 7 πŸ’¬ 2 πŸ“Œ 2

This pretty much sets a precedent for Iran-backed guerillas attacking cities on the US coastline, doesn't it?

05.03.2026 16:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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US sub sinks Iranian warship in Indian Ocean, Hegseth says More than 100 personnel were thought to be aboard the vessel, which went down to the south of Sri Lanka.

I believe this is what is being discussed. (I'm not sure Sharon's statement adds any clarity here.)

05.03.2026 15:58 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Matching sounds to shapes: Evidence of the bouba-kiki effect in naΓ―ve baby chicks Humans across multiple languages spontaneously associate the nonwords β€œkiki” and β€œbouba” with spiky and round shapes, respectively, a phenomenon named the bouba-kiki effect. To explore the origin of t...

β€œHumans across multiple languages spontaneously associate the nonwords kiki & bouba with spiky & round shapes, respectively...We tested the bouba-kiki effect in baby chickens. Similar to humans, they spontaneously chose a spiky shape when hearing a kiki sound & a round shape when hearing a bouba.β€πŸ˜²πŸ§ͺ

19.02.2026 19:20 πŸ‘ 337 πŸ” 124 πŸ’¬ 13 πŸ“Œ 41