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Posts by David Martinez

Shifts in U.S. Social Media Use, 2020–2024: Decline, Fragmentation, and Enduring Polarization | Journal of Quantitative Description: Digital Media

Is social media dying? How much did Twitter change as it became X? Which party now dominates the conversation?

Using nationally representative ANES data from 2020 & 2024, I map how the U.S. social media landscape has changed

Here are the key take-aways 🧵

Full paper out now in in JQD:DM!

19 hours ago 864 352 21 81

We already KNOW how to make super babies, you eugenicist creeps! And it's all the things you fucking fucks are fucking up! THREAD!

4 days ago 1128 410 34 52
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Download our database of retrieval practice research in real classrooms Want a quick way to access classroom research on retrieval practice? Download our database of 50 experiments and read a detailed literature review by cognitive scientists.

Familiar with retrieval practice research? Your sources might be older than your students. A LOT of new research has shown that retrieval practice consistently benefits student learning in real classrooms. Check out this database of 50 research studies!

1 week ago 4 3 0 0

Genuine q: What’s the issue with Oster?

1 week ago 0 0 2 0

You’re right.

That might not be enough time to bury the Statue of Liberty and distribute 400 million ape costumes.

1 week ago 2090 491 34 12

AI seems to be the topic of the year — nearly every conversation I have in my role as academic lead for good research practice touches on it in some way. I’d like to lay out my developing thoughts for conversation and critique. (1/7)

1 week ago 34 16 1 1

I've seen a lot of demoralized posts (and emails) from people who didn't get into grad school this cycle.

This was one of the worst cycles I've ever seen due to massive cuts to research funding, financial difficulties at universities, and technological disruptions.

1 month ago 530 119 15 14

Psychology has a whole cottage industry in which people come up with some construct that is essentially "attitudes/beliefs/expectations/feelings about X", and then the central claim is that this construct is a super important determinant of future X outcomes.>

1 month ago 168 37 14 9

And to be clear, my post is not a critique of y’all’s study. Great to have more evidence of the issues with unproctored online studies!

1 month ago 1 0 0 0
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suggested edit: when you collect data online *in unproctored sessions*, are the results from humans or AI?

1 month ago 1 0 1 0
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Every time you experience something new, your brain faces a decision: Should it update an existing memory or create a new one?

In our new paper in @sfnjournals.bsky.social #JNeurosci, we isolate that exact decision, moment-by-moment during learning 🧵

1 month ago 135 46 3 1
Pooh meme: bored, I don't know anything about this... smug: this is beyond the scope of the paper

Pooh meme: bored, I don't know anything about this... smug: this is beyond the scope of the paper

editing some writing atm...

1 month ago 100 27 1 1

Join our lab in Geneva, as a postdoc working on #workingmemory, with both Jarrod Lewis-Peacock and myself !

1 month ago 25 19 0 1
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Jayme Lawson from Sinners hit the nail on the head and said how I felt with the whole BAFTAs situation.

1 month ago 8606 2925 117 358

Across my interviews with developers, AND across my conversations with people who were not as of several months ago developers and now are (???), this motivation effect is clear. I am baffled that psychology is not more interested in this: the expectation of what's possible is changing for people

1 month ago 79 8 4 7

*unproctored Prolific experiments. get people on Zoom or the teleconference platform of your choice.

2 months ago 2 0 0 0
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Elon Musk posted about race almost every day in January Many social media posts by Tesla CEO on his platform are indiscernible from those of white supremacists, say experts

“The richest man in the world posted about how the white race was under threat, made allusions to race science or promoted anti-immigrant conspiracy content on 26 out of 31 days in January”

www.theguardian.com/technology/2...

2 months ago 21 12 1 1
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Oh hey, let's see what else "Lane A. Glenn" has contributed to Inside Higher Ed!

Yuuuuuup.

2 months ago 280 14 3 0

How many versions of the Iowa Gambling Task (IGT) exist? And how much does this affect research using the IGT? More than you might think. 🧵

2 months ago 103 46 3 7
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I'm trying to decide whether to start having lab meetings (as well as 1-1 supervisions) this year. We're a small group (5 students).

Keen to hear what works for you all?!

Possible formats:
- roundtable brief progress reports
- longer project update talks
- journal club
- skill share sessions
-...?

3 months ago 11 2 10 0

MTurk and other recruitment platforms could still be great for getting a larger, more diverse sample. But if you want quality responses, you probably need to monitor the participants (and pay appropriately).

3 months ago 0 0 0 0

This is nitpicky and not really directed at you but the issue is these are unsupervised! What about recruiting participants from these platforms and using zoom or some other platform to monitor participants? I did that. data seemed pretty much fine.

3 months ago 2 0 0 0

Edit: ”…collected on MTurk in an unsupervised study simply cannot be trusted.”

3 months ago 1 0 1 0

Blocked by @mehr.nz for quote-tweeting this about the screencapped post.

Unreal how thin-skinned people are, when they are willing to publicly hurl stones at others. Honestly, truly pathetic behaviour.

3 months ago 15 1 1 2

the research and consenting process seems fine to me. Your reply seems over the top and posting the student’s name, lab, and institution seems extreme.

3 months ago 0 0 0 0

This is a model for what actual masculinity should be. Men don’t need to spend more time in caves beating their chests with other men; they need to take their daughters to a meaningful thing and talk to them about it. Relatedly I think the biggest cure for toxic masculinity is platonic women friends

3 months ago 2601 498 41 21
Letter to the Guardian.
The protection of badgers has a long pedigree (Report, 29 August). Arthur Gore, known as "Boofy", the eighth Earl of Arran, was a fanatical defender of them. He was also a tireless campaigner for the rights of homosexuals. In 1967 he managed to push through a law in the Lords that decriminalised homosexuality but failed to pass a bill to outlaw the cruel hunting of badgers. When asked why he had not received enough support for his badger bill, he replied: "Not many badgers in the House of Lords." Tony Lywood Keswick, Cumbria

Letter to the Guardian. The protection of badgers has a long pedigree (Report, 29 August). Arthur Gore, known as "Boofy", the eighth Earl of Arran, was a fanatical defender of them. He was also a tireless campaigner for the rights of homosexuals. In 1967 he managed to push through a law in the Lords that decriminalised homosexuality but failed to pass a bill to outlaw the cruel hunting of badgers. When asked why he had not received enough support for his badger bill, he replied: "Not many badgers in the House of Lords." Tony Lywood Keswick, Cumbria

Found when sorting an old drive. I still, very occasionally, say 'not many badgers in the House of Lords' and this is why:

1 year ago 3163 1080 21 28

The first preprint from the SHARE study is out! 🥳 We compared the effects of three different incentives (a bulk payment, a bulk payment with personalized feedback, and payment per beep) on data quantity, data quality, and participant experiences in a student sample.

4 months ago 40 8 2 2
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OpenWMData A collection of publicly available working memory datasets

Do you have an open working memory dataset and want it to be findable and reused? You can now add it to the Open WM Data Hub: williamngiam.github.io/OpenWMData! The collection of datasets tagged with useful metadata is steadily growing thanks to a small team of volunteers!

4 months ago 66 41 3 1
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🚨 SynthNet is out 🚨
Researchers propose new constructs and measures faster than anyone can track. We (@anniria.bsky.social @ruben.the100.ci) built a search engine to check what already exists and help identify redundancies; indexing 74,000 scales from ~31,500 instruments in APA PsycTests. 🧵1/3

4 months ago 158 86 3 3