simine vazire
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simine.com
simine vazire
@simine.com
Psychology prof at UniMelb, co-director of MetaMelb (interdisciplinary metascience lab).
Live (mostly) in Sydney.
Study credibility of science & how to improve it.
@siminevazire on Twitter
What should psychology journals do about this? What’s a reasonable policy/standard to apply to research using online data collection methods?
We need better ways to tell computers and humans apart

Article: The potential existential threat of large language models to online survey research

www.pnas.org/doi/10.1073/...
December 18, 2025 at 11:58 PM
Sydney, and Australia, are still grieving the attack on our Jewish community.
Since moving to Australia, one of my favorite things about it is that I feel so safe here. It’s devastating to know that that feeling has been taken away for our Jewish friends and neighbors. I’m so sorry.
December 18, 2025 at 8:52 PM
We all need something uplifting right now, especially in Sydney. Here is “an absolute bloody legend” (according to his owner, but I agree):
December 14, 2025 at 10:05 PM
Congratulations to @bethclarke.bsky.social on her PhD graduation!! It’s been amazing watching you become the incredible scholar that you are, thanks for letting me come along for the ride!
You’re the best! 🎉🥂🌟
December 13, 2025 at 10:55 AM
Preparing this talk gave me an opportunity to reflect on what lessons I've learned from psychology's replication crisis and credibility revolution, and what advice I would have for other fields. We've come a long way!
Video: youtu.be/_vb1CNwC3CM?...
Slides : osf.io/cuj62/files/...
December 3, 2025 at 10:50 PM
Reposted by simine vazire
Fadeout of cognitive training remains one of the more replicable
findings in psychology in this preregistered study of 300 preschool children. Well-done study with a 4 year follow up. The language gains either faded or the control group caught up.
journals.sagepub.com/doi/full/10....
December 3, 2025 at 10:14 AM
Reposted by simine vazire
The first article recommended by @psych.peercommunityin.org is now published in PCJ!!
December 1, 2025 at 12:36 PM
Starting in about two hours, I’ll be giving a zoom talk about what lessons other disciplines can take from Psychology’s replication crisis.

Link to register: univ-cotedazur.zoom.us/meeting/regi...
📣 Save the date for the 13th PCI webinar on December 1st, 2025, at 4 PM CET!! Simine Vazire (University of Melbourne, Australia) will present "Recognizing and responding to a replication crisis: Lessons from Psychology". For more details and registration, visit: buff.ly/wZNoD2v
PCI Webinar Series - Peer Community In
The PCI webinar series is a series of seminars on research practices, publication practices, evaluation, scientific integrity, meta-research, organised by Peer Community In
peercommunityin.org
December 1, 2025 at 12:58 PM
Looking forward to this next week!

During waking hours for people in Europe, Africa, & the Americas.
And the Middle East.
And parts of Asia.
Really almost everywhere except Eastern Asia & Australia/NZ.

Link to register: univ-cotedazur.zoom.us/meeting/regi...
📣 Save the date for the 13th PCI webinar on December 1st, 2025, at 4 PM CET!! Simine Vazire (University of Melbourne, Australia) will present "Recognizing and responding to a replication crisis: Lessons from Psychology". For more details and registration, visit: buff.ly/wZNoD2v
PCI Webinar Series - Peer Community In
The PCI webinar series is a series of seminars on research practices, publication practices, evaluation, scientific integrity, meta-research, organised by Peer Community In
peercommunityin.org
November 27, 2025 at 11:09 AM
“The articles in AMPPS offer, month in and month out, the invitation to practice aligning your values, intentions, and actions to do less scientific harm and reach for the methodological ceiling”

Grateful to @dsbarra.bsky.social for continuing what @profsimons.bsky.social & co started at AMPPS!
November 26, 2025 at 7:38 PM
Reposted by simine vazire
Job posting alert! Open Science Specialist at the University of Calgary (in Canada!) #job #OpenScience careers.ucalgary.ca/jobs/1704502...
Specialist, Open Science, Research Services in Calgary, AB, ...
Specialist, Open Science, Research Services in Calgary, AB, ...
careers.ucalgary.ca
November 19, 2025 at 10:47 PM
Dear fans of Hugo the dog,
Hugo passed away peacefully on Monday, after a wonderful last few days doing his favorite things: road-tripping, going to the beach, and getting lots and lots of pats.
He was full of love and goofiness until the end.
November 19, 2025 at 8:01 PM
If you’re an author, reviewer, or editor and want to learn about Registered Reports from one of the best editors around, go to this webinar!

Nov 19th at 8am Pacific US, 11am Eastern US, 5pm Central Europe (3am Nov 20th for the diehard Australians)
Sage webinar on Registered Reports (RRs/RRRs)! I'm excited to participate, and if you have any curiosity about writing a RR or reviewing a RR, please consider joining the webinar. Spread the word-- thanks! @psychscience.bsky.social
📢 Join our upcoming Registered Reports webinar!

Don't miss out on this opportunity to enhance your research! We will cover the following topics:
- Two-stage review explained
- Tips for Stage 1 protocols
- Common author challenges

Register now: https://ow.ly/R6yH50Xptt0 #RegisteredReports #Webinar
November 12, 2025 at 8:45 PM
Reposted by simine vazire
📣 Save the date for the 13th PCI webinar on December 1st, 2025, at 4 PM CET!! Simine Vazire (University of Melbourne, Australia) will present "Recognizing and responding to a replication crisis: Lessons from Psychology". For more details and registration, visit: buff.ly/wZNoD2v
PCI Webinar Series - Peer Community In
The PCI webinar series is a series of seminars on research practices, publication practices, evaluation, scientific integrity, meta-research, organised by Peer Community In
peercommunityin.org
November 5, 2025 at 10:49 AM
Reposted by simine vazire
OpenNeuro @openneuro.bsky.social just hit a huge milestone: 1500 datasets! Congrats to the team on making this project so successful over the last 7 years.
October 13, 2025 at 11:35 PM
My blog has moved! It’s now at sometimesimwrongblog.wordpress.com If you have links to posts in your syllabus, let me know if you have any trouble finding the corresponding post!
October 7, 2025 at 7:49 PM
Very lucky to have @jamiecummins.bsky.social as a STAR editor at Psych Science, helping us navigate these kinds of issues. This is such important work.
Can large language models stand in for human participants?
Many social scientists seem to think so, and are already using "silicon samples" in research.

One problem: depending on the analytic decisions made, you can basically get these samples to show any effect you want.

THREAD 🧵
The threat of analytic flexibility in using large language models to simulate human data: A call to attention
Social scientists are now using large language models to create "silicon samples" - synthetic datasets intended to stand in for human respondents, aimed at revolutionising human subjects research. How...
arxiv.org
September 19, 2025 at 10:27 PM
Another chapter in the book of “Sometimes There’s Nothing There & Using Fancy Stats to Find Something Can Be a Bad Idea”

Do you wish we could understand causality by finding lagged effects in longitudinal data?
Bad news - lagged effects are probably rare, & even the RI-CLPM is an ill-suited test.
Interested in models used to estimate lagged effects in panel data? We (@rebiweidmann.bsky.social, Hyewon Yang) have a new paper looking at patterns of stability and their implications for bias and model choice: osf.io/preprints/ps... [1/x]
OSF
osf.io
September 19, 2025 at 4:42 PM
Reposted by simine vazire
Excited to finally have my first paper officially published! "How Do Psychology Journals Handle Postpublication Critique?" is now online with AMPPS. Huge thanks to my supervisors @tomhardwicke.bsky.social and @simine.com and co-authors @bethclarke.bsky.social, N Moodie, S Schiavone, and R Thibault ☺️
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
doi.org
September 17, 2025 at 11:23 PM
Reposted by simine vazire
We speak to @simine.com, @wchiggins.bsky.social and Laura Conlon about MetaMelb. This lab studies what is essentially ‘the psychology of psychology research’ – examining practices and norms across psychology.

Read it here: go.unimelb.edu.au/753p
The psychology of psychology: Inside MetaMelb
The psychology of psychology: Inside MetaMelb
psychologicalsciences.unimelb.edu.au
September 16, 2025 at 11:53 PM
Reposted by simine vazire
FYI - New @spspnews.bsky.social session on Navigating Uncertainty: A Community Conversation on Research Funding Challenges

Friday, September 19
2 - 3 PM ET (free and virtual)

Sign up: community.spsp.org/events/sNhWo...
SPSP
nam04.safelinks.protection.outlook.com
September 9, 2025 at 6:48 PM
If I’m understanding right, Aaron Clauset at Peer Review Congress showing that the strongest correlate of peer review outcomes at Science and Science Advances is the prestige of authors’ institutions. Also pretty big association with author geography, not much with author gender. #PRC10
September 4, 2025 at 6:57 PM
At the Peer Review Congress #PRC10, @maclomaclee.bsky.social talks about flaws in meta-research. Often only points out problems, doesn’t test solutions, & often uses suboptimal methods (observational design, convenience samples).
Great points, but imo, pointing out problems can be big contribution.
September 4, 2025 at 1:32 PM
Reposted by simine vazire
How do the discussion sections of paper mill articles in cancer research differ from similar literature? Drop by my poster to hear me over explain this graph in person today and tomorrow ✨ @peerreviewcongress.bsky.social #PRC10
September 4, 2025 at 12:46 PM
Reposted by simine vazire
A meta-perspective by Malcolm Macleod on the presentations at #PRC10.

Are we going for low hanging fruit too much in research on peer review / publication?
September 4, 2025 at 1:23 PM