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James Bartlett

@bartlettje.bsky.social
1K followers 551 following 306 posts

Psychology lecturer at UoG 🏴󠁧󠁢󠁳󠁣󠁴󠁿 All things data skills, statistics, quant research methods, and HE pedagogy. #rstats 🗣️🇬🇧🇩🇪

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James Bartlett @bartlettje.bsky.social · 25/09/2026
In the second instalment of our @psyteachr.bsky.social refresh, we have Gaby Mahrholz who leads second year undergraduate psychology. We are still talking big numbers - around 300 students - and they start working on inferential statistics using the Analysis book: psyteachr.github.io/analysis-v4/
lnkd.in
LinkedIn
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James Bartlett @bartlettje.bsky.social · 24/09/2026
We're in the first week of term and several of our @psyteachr.bsky.social books have had a little refresh. Matthew Checketts leads first year undergraduate psychology. Around 600 students develop wrangling and visualisation skills using the Data Skills book: psyteachr.github.io/data-skills-...
psyteachr.github.io
PsyTeachR
Psychologists from @UofGPsychNeuro advocating open, reproducible methods teaching.
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James Bartlett @bartlettje.bsky.social · 12/08/2026
We have a new pre-print, which I am very excited about! We report an exploratory mixed methods study to see how students would find wrangling realistic data as part of the analysis process. osf.io/preprints/ps...
osf.io
OSF
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Our World in Data @ourworldindata.org · 25/07/2026
Three-quarters of eggs produced in the United Kingdom are free-range— Growing up in the United Kingdom in the 1990s and early 2000s, almost all the eggs in our supermarket came from battery hens, those raised in small wire enclosures.
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James Bartlett @bartlettje.bsky.social · 24/07/2026
New pre-print and it's not about teaching for once! 🚨 We report a direct replication of Irving et al. (2022) who showed debunking statements can decrease mistaken causal inferences when reading a news article. osf.io/preprints/ps...
osf.io
OSF
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James Bartlett @bartlettje.bsky.social · 15/07/2026
Really nice to see this published! I was one of the peer reviewers and it's so refreshing to see some nicely done SoTL research. I'm the kind of reviewer who checks the data and code for reproducibility and everything was pristine. journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Julia M. Rohrer @dingdingpeng.the100.ci · 15/07/2026
I am delighted that the opening segment of the latest episode of Very Bad Wizard features the workhorse of insightful social sciences in the 21st century: Latent Profile Analysis. Applied to boobs vs. ass, and also egalitarian values and materialism. verybadwizards.com/episode/epis...
Buttocks or Breasts? Identifying Latent Subgroups in Male Preferences for Female Bodily Features

Mehmet Mehmetoglu

Among the various physical traits that serve as secondary sexual characteristics, breasts and buttocks are visually conspicuous cues used in male mate evaluation because they signal youth, fertility, developmental stability, and nutritional status. Although these features have been extensively studied, less is known about the extent to which men differ in the relative importance they place on each trait. Latent Profile Analysis (LPA) identified distinct subgroups of Norwegian men (N = 395) based on how much importance they placed on breasts and buttocks in their evaluations of romantic partners. A four-class solution emerged, comprising Highly Body-Oriented (53%), Moderately Body-Oriented (20%), Buttocks-Oriented (18%), and Body-Unoriented (9%) subgroups. Predictors such as egalitarianism, materialism, and preferences for sexiness were, as expected, significantly associated with class membership, providing support for the validity of the typology. Notably, a consistent buttocks-oriented class emerged across all LPA solutions, whereas no distinct breasts-oriented group was found, as ratings of breasts persistently co-occurred with high ratings of buttocks, suggesting that breasts do not function as a primary preference in isolation. These findings reveal that buttocks may occupy a more central and stable role than breasts in male mate preferences, offering novel insights into the structure of physical attraction and heterogeneity in the male mating mind.
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Daniel Lakens @lakens.bsky.social · 15/07/2026
We are hiring an assistant professor in Metascience! Join our lovely department of Human-Technology Interaction, with a very active Metascience group, at Eindhoven University of Technology. Apply here before August 14, or share the vacancy in your network! www.tue.nl/en/working-a...
tue.nl
Assistant Professor in Metascience
Personal type: Scientific staff
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James Bartlett @bartlettje.bsky.social · 19/06/2026
Such a joy to contribute to this 💪
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Rich Ramsey @richramseyphd.bsky.social · 11/06/2026
For folks who regularly preregister their research, I put together a Quarto preregistration template that renders to PDF via Typst. It closely follows the original template by @bartlettje.bsky.social. #OpenScience #Rstats github.com/rich-ramsey/...
github.com
GitHub - rich-ramsey/prereg-template: A minimal Quarto template for writing preregistrations, rendered to PDF via Typst.
A minimal Quarto template for writing preregistrations, rendered to PDF via Typst. - rich-ramsey/prereg-template
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James Bartlett @bartlettje.bsky.social · 05/06/2026
Always an excellent series of topics and speakers!
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James Bartlett @bartlettje.bsky.social · 07/05/2026
🚨 New article klaxon 🚨 Gaby Mahrholz, @emilynordmann.bsky.social and I have our article "Practice What You Preach: Designing Student Assignments That Advance Open and Reproducible Science" published in AMPPS. doi.org/10.1177/2515...
doi.org
Practice What You Preach: Designing Student Assignments That Advance Open and Reproducible Science - James Bartlett, Gaby Mahrholz, Emily Nordmann, 2026
Since the replication crisis came to widespread attention in psychology, there has been significant progress in reforming research practices to be more open and...
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James Bartlett @bartlettje.bsky.social · 30/04/2026
After a year and a half and three revisions, this was rejected: osf.io/preprints/os.... I can take rejection but the experience with Teaching Statistics has been truly the most frustrating journal processes I've ever experienced.
osf.io
OSF
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Julia M. Rohrer @dingdingpeng.the100.ci · 22/04/2026
Good news everyone 🥳 Our (w @vincentab.bsky.social) primer on models as prediction machines (with the marginaleffects package) is finally officially published!> journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Models as Prediction Machines: How to Convert Confusing Coefficients Into Clear Quantities - Julia M. Rohrer, Vincent Arel-Bundock, 2026
Psychological researchers usually make sense of regression models by interpreting coefficient estimates directly. This works well enough for simple linear model...
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Ian Hussey @ianhussey.mmmdata.io · 18/04/2026
I’m hiring a PhD student! The candidate will work alongside @zefreeman.bsky.social, who is joining our research group as postdoc. jobs.unibe.ch/job-vacancie...
jobs.unibe.ch
PhD Student in Meta-Science and Clinical Psychology - Universität Bern
Universität Bern is looking for PhD Student in Meta-Science and Clinical Psychology
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James Bartlett @bartlettje.bsky.social · 27/03/2026
The absolute beautify of social media. So many useful resources and ideas, including discovering the ‘sample_prior = “only”’ argument in brms!
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James Bartlett @bartlettje.bsky.social · 26/03/2026
🤩
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James Bartlett @bartlettje.bsky.social · 26/03/2026
Bayesians: does anyone (@solomonkurz.bsky.social maybe?) have a good resource for how to set priors for beginners? Such as what kind of information in past papers you can use to inform your choices? I found this but any resources welcome! svmiller.com/blog/2021/02...
svmiller.com
How Should You Think About Your Priors for a Bayesian Analysis?
Here, I riff on how students should think about priors for a Bayesian analysis. It seems daunting, but it just means you should use your head and not expect software to think of your data/model for...
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Gilad Feldman @giladfeldman.bsky.social · 24/03/2026
CodaNote: Collaborative Markdown/Quarto/Rmarkdown People were looking for collaborating on MD family files with knit rendering... I built this tool for CORE team, works like Google Docs. Opened it to all from internal use so everyone can use it. Feedback welcome! Try: codanote.vercel.app
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James Bartlett @bartlettje.bsky.social · 16/03/2026
I’m back at work after almost five weeks off on paternity leave. I thought I would be much more restless but I really enjoyed the time away minus the sleep deprivation.
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James Bartlett @bartlettje.bsky.social · 11/03/2026
If anyone is interested in a journal leadership position, there is a call for editor-in-chief for the Journal of Open Psychology Data: openpsychologydata.metajnl.com/announcements. I'm on the board, so I'm happy to chat to anyone or put your in touch with others!
openpsychologydata.metajnl.com
Announcements | Journal of Open Psychology Data
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James Bartlett @bartlettje.bsky.social · 16/02/2026
print(“Hello World”) For someone who almost lives for their work, the next four weeks are going to be a wild change of pace! Extremely fortunate paternity leave increased from 2 weeks just in time for baby Astrid. P
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Crystal Lewis @cghlewis.bsky.social · 09/02/2026
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...
cghlewis.com
Trying out dplyr 1.2.0 | Crystal Lewis
Updating existing dplyr code in my workflow with new dplyr updates
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Dan Quintana @dsquintana.bsky.social · 10/02/2026
New preprint! 🎉 Led by @heeminkang.bsky.social, we found that a brief teaching intervention (20 min lecture + student activity) improved some aspects open science knowledge and attitudes in students taking an undergrad health psych course osf.io/preprints/ps...
The distribution of questionnaire results
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Ruth Lee @ruthjlee.bsky.social · 09/02/2026
Join us in York! 12-month full-time *development-focused* psychology lectureship in our very friendly York St John team. Quant research methods too. Deadline 24th February. Please share: www.jobs.ac.uk/job/DQL260/l...
tinyurl.com
jobs.ac.uk - Search
jobs.ac.uk - Search 1000's of science, research and academic related vacancies in the UK and abroad. Updated daily, easy to use job search and a free Jobs by Email service.
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Association for Psychological Science @psychscience.bsky.social · 09/02/2026
APS Fellow @juliafstrand.bsky.social offers resources and recommendations to run a productive #ResearchLab
psychologicalscience.org
How to Set Up and Run an Undergraduate Research Lab
APS Fellow Julia Strand offers resources and recommendations to run a productive research lab.
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James Bartlett @bartlettje.bsky.social · 09/02/2026
Smaller edits this time, but third revision 🥲 osf.io/preprints/os...
osf.io
OSF
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Ian Hussey @ianhussey.mmmdata.io · 05/02/2026
Early draft of my ebook for the course: ianhussey.quarto.pub/reproducible...
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Naomi Saphra @nsaphra.bsky.social · 02/02/2026
New sci-hub just dropped.
From X:
Renaud Foucart
@RenaudFoucart
Few people now this but the Epstein library can be used to bypass academic journal paywalls. You search for a paper and if someone sent it to Epstein the pdf is there.
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Sara Eftekhari @sara-eftekhari.bsky.social · 03/02/2026
𝗛𝗼𝘄 𝘁𝗼 𝗣𝗮𝗿𝘁𝗶𝗰𝗶𝗽𝗮𝘁𝗲: Level 1 Psychology students at University of Glasgow (to earn 2 Credits on SONA): glasgow.sona-systems.com/default.aspx... Everyone else: uofg.qualtrics.com/jfe/form/SV_... 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗧𝗲𝗮𝗺: Sara Eftekhari (dissertation student), and @debruine.bsky.social (supervisor).
uofg.qualtrics.com
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James Bartlett @bartlettje.bsky.social · 22/01/2026
Very cool and a project idea I'd considered myself! I'm genuinely surprised the reproducibility estimate is so high, but I'd love to see the estimate for articles which *don't* have open data. journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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James Bartlett @bartlettje.bsky.social · 20/01/2026
I’m sorry, you can do what now…?!
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Mattan S. Ben-Shachar @mattansb.msbstats.info · 12/01/2026
Too many significance tests!! Made this little graphic for my #stats class, showing the various kinds of (N)HST and how interpreting confidence intervals can replace all of them. Made with #rstats #ggplot (duh)
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James Bartlett @bartlettje.bsky.social · 10/12/2025
At graduation, we had so many from our online distance learning programme attend, where people came from as far away as New Zealand, Canada, and Jordan. This is why I think HE will never die, anyone can read a book or watch some videos, but it’s the human connections which make the difference.
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James Bartlett @bartlettje.bsky.social · 26/11/2025
We have a new revision on our preprint "Practice what you preach: Designing student assignments that advance open and reproducible science"! We had some of the nicest (but still critical) peer-review comments I've ever received, so that was refreshing. osf.io/preprints/os...
osf.io
OSF
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James Bartlett @bartlettje.bsky.social · 10/11/2025
After sitting on some revisions for months, I've made some major changes to one of my preprints. I outline an assessment approach which embeds the concepts of reproducibility and replicability while students are demonstrating their analysis skills. osf.io/preprints/os...
osf.io
OSF
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David A. Sbarra @dsbarra.bsky.social · 21/10/2025
Papers from July to Sept 2025 at AMPPS are killer. We don't have formal print issues, but we have this-- journals.sagepub.com/toc/ampa/8/3
journals.sagepub.com
Advances in Methods and Practices in Psychological Science - Volume 8, Number 3
Table of contents for Advances in Methods and Practices in Psychological Science, 8, 3
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James Bartlett @bartlettje.bsky.social · 20/10/2025
Ever year when I introduce NHST and the importance of effect sizes, I get students to respond what success rate would convince them that someone could see the future. Weirdly, most of the time, the answer isn't 53%...
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Felix Thoemmes @felixthoemmes.bsky.social · 29/09/2025
Excited to share that I’ll be the incoming Editor of AMPPS. My first priority is building a diverse team of Associate Editors and Editorial Board members. If you’re interested, DM me or add your name via this super simple survey. cornell.ca1.qualtrics.com/jfe/form/SV_... Please share!
cornell.ca1.qualtrics.com
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James Bartlett @bartlettje.bsky.social · 20/09/2025
Love this, very fun!
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Ian Hussey @ianhussey.mmmdata.io · 16/09/2025
Proposal for how to fix family wise error rates. For every uncorrected p value you must add an extra letter to the claim. “Eating chocolate maaaaaaaaay be associated with lower rates of stroke”
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Andreas Brandmaier @brandmaier.bsky.social · 16/09/2025
Psychological Methods is looking for Editorial Fellows. We are looking forward to applications of early-career psychologists who will bring experiential diversity to their work. If you are interested, reach out to me or directly apply here to work with a wonderful team: www.apa.org/pubs/journal...
apa.org
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Lisa DeBruine @debruine.bsky.social · 16/09/2025
This fall I will have a blind student in my coding class for the first time. Do any other instructors or visually impaired coders have advice beyond making sure my book has useful alt-text for the images? #rstats #accessibility Class book: psyteachr.github.io/reprores-v5/
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James Bartlett @bartlettje.bsky.social · 08/09/2025
Our contribution to an upcoming book on teaching open science was "how to teach reproducible research". There are plenty of lesson plans or individual courses out there but less on how you can build skills across a whole degree. osf.io/preprints/ps...
osf.io
OSF
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PsyArXivBot @psyarxivbot.bsky.social · 08/09/2025
How to teach reproducible research: osf.io/g5ehx
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Jenny Terry @jennyterry.bsky.social · 08/09/2025
Keen to help develop the international #StatsEd research community? Interested in running large-scale collaboarative #StatsEd research projects? Consider joining the @rosenetwork.bsky.social committee! There are a few days left to apply. More details: www.rose-network.org/about-us/vac....
rose-network.org
RoSE Network - Vacancies
vacancies
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Lukas Röseler @aufdroeseler.bsky.social · 03/09/2025
At the FORRT Replication Hub, our mission is to support researchers who want to replicate previous findings. We have now published a big new component with which we want to fulfill this mission: An open access handbook for reproduction and replication studies: forrt.org/replication_...
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James Bartlett @bartlettje.bsky.social · 03/09/2025
I’ve had a beautiful few days in Münster. Now for a 4 hour adventure around Frankfurt until my late late flight.
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James Bartlett @bartlettje.bsky.social · 01/09/2025
Workshop done and dusted before the welcome event! All the attendees got their books up and running with minimal R Studio and GitHub shenanigans. All materials here with a walkthrough video for the book output: bartlettje.github.io/disseminatio...
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James Bartlett @bartlettje.bsky.social · 01/09/2025
I managed to make up for it 💛🖤💛
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