Lukas Wallrich
@lukaswallrich.bsky.social
Organisational Psychologist, Open Science Enthusiast - based at Birkbeck Business School, London
Reposted by Lukas Wallrich
PsyArXiv is now down to only ~40% of the backlog we started with, thanks to our amazing moderators 🎉 To all mods: thank you so much for your hard work!
Did one of your preprints get approved recently? Help us show our thanks by liking and sharing this post :)
#PsyArXiv #PsychSciSky
Did one of your preprints get approved recently? Help us show our thanks by liking and sharing this post :)
#PsyArXiv #PsychSciSky
August 30, 2025 at 10:02 PM
PsyArXiv is now down to only ~40% of the backlog we started with, thanks to our amazing moderators 🎉 To all mods: thank you so much for your hard work!
Did one of your preprints get approved recently? Help us show our thanks by liking and sharing this post :)
#PsyArXiv #PsychSciSky
Did one of your preprints get approved recently? Help us show our thanks by liking and sharing this post :)
#PsyArXiv #PsychSciSky
Very excited that hashtag#UKRI is allowing us to bring coders and meta-scientists together in Germany to build tools that make replications more visible. If you are up for three days of coding, collaboration and new connections, have a look at the details below ... and please share.
🚀Making Replications Count Hackathon - in-person🚀
3 days. 2 open tools. 1 goal: make replication studies impossible to ignore
📅22–24 Oct 2025 | Münster, Germany ✈️Travel & accommodation covered (UKRI-funded)
Find out more below 👇
#OpenScience #Metascience #Replication #Hackathon #CodingForScience
3 days. 2 open tools. 1 goal: make replication studies impossible to ignore
📅22–24 Oct 2025 | Münster, Germany ✈️Travel & accommodation covered (UKRI-funded)
Find out more below 👇
#OpenScience #Metascience #Replication #Hackathon #CodingForScience
August 11, 2025 at 1:25 PM
Very excited that hashtag#UKRI is allowing us to bring coders and meta-scientists together in Germany to build tools that make replications more visible. If you are up for three days of coding, collaboration and new connections, have a look at the details below ... and please share.
Reposted by Lukas Wallrich
OK here it is, the moment you have all been waiting for! Our advert for 5 posts here at Glasgow: Cognitive neuroscience/psychology. Closing date May 12 - please spread the word
www.nature.com/naturecareer...
www.nature.com/naturecareer...
March 28, 2025 at 7:06 AM
OK here it is, the moment you have all been waiting for! Our advert for 5 posts here at Glasgow: Cognitive neuroscience/psychology. Closing date May 12 - please spread the word
www.nature.com/naturecareer...
www.nature.com/naturecareer...
🚀 New Meta-Analysis Published: Linking Team Diversity with Performance 🚀
We analyzed 615 studies (2,638 effect sizes) to assess how different dimensions of team diversity are associated with team performance—now published as a Registered Report in the Journal of Business and Psychology. 🧵 [1/8]
We analyzed 615 studies (2,638 effect sizes) to assess how different dimensions of team diversity are associated with team performance—now published as a Registered Report in the Journal of Business and Psychology. 🧵 [1/8]
September 1, 2024 at 4:19 PM
🚀 New Meta-Analysis Published: Linking Team Diversity with Performance 🚀
We analyzed 615 studies (2,638 effect sizes) to assess how different dimensions of team diversity are associated with team performance—now published as a Registered Report in the Journal of Business and Psychology. 🧵 [1/8]
We analyzed 615 studies (2,638 effect sizes) to assess how different dimensions of team diversity are associated with team performance—now published as a Registered Report in the Journal of Business and Psychology. 🧵 [1/8]
Reposted by Lukas Wallrich
🚨WP🚨
We test 9 online samples and find clear tradeoffs between attentiveness and representativeness - which sample is best depends on research q and priorities. For social/political qs I rec Bovitz/Lucid, for complex designs I rec Cloud/Prolific osf.io/preprints/ps...
We test 9 online samples and find clear tradeoffs between attentiveness and representativeness - which sample is best depends on research q and priorities. For social/political qs I rec Bovitz/Lucid, for complex designs I rec Cloud/Prolific osf.io/preprints/ps...
February 22, 2024 at 3:16 PM
🚨WP🚨
We test 9 online samples and find clear tradeoffs between attentiveness and representativeness - which sample is best depends on research q and priorities. For social/political qs I rec Bovitz/Lucid, for complex designs I rec Cloud/Prolific osf.io/preprints/ps...
We test 9 online samples and find clear tradeoffs between attentiveness and representativeness - which sample is best depends on research q and priorities. For social/political qs I rec Bovitz/Lucid, for complex designs I rec Cloud/Prolific osf.io/preprints/ps...
Reposted by Lukas Wallrich
New preprint:
"On the process & value of direct close replications: Reply to Shafir and Cheek (2024) commentary on Chandrashekar et al. (2021)"
Rebuttal of Shafir & Cheek's (2024) commentary of our replication now 40+ pages.
Feedback welcome!
Read:
www.researchgate.net/publication/...
👇🧵
"On the process & value of direct close replications: Reply to Shafir and Cheek (2024) commentary on Chandrashekar et al. (2021)"
Rebuttal of Shafir & Cheek's (2024) commentary of our replication now 40+ pages.
Feedback welcome!
Read:
www.researchgate.net/publication/...
👇🧵
February 2, 2024 at 4:31 AM
New preprint:
"On the process & value of direct close replications: Reply to Shafir and Cheek (2024) commentary on Chandrashekar et al. (2021)"
Rebuttal of Shafir & Cheek's (2024) commentary of our replication now 40+ pages.
Feedback welcome!
Read:
www.researchgate.net/publication/...
👇🧵
"On the process & value of direct close replications: Reply to Shafir and Cheek (2024) commentary on Chandrashekar et al. (2021)"
Rebuttal of Shafir & Cheek's (2024) commentary of our replication now 40+ pages.
Feedback welcome!
Read:
www.researchgate.net/publication/...
👇🧵
Reposted by Lukas Wallrich
We are thrilled to announce the Paul Meehl Graduate School for metascience at Eindhoven University of Technology. We will offer 6-8 free workshops a year for metascience PhD students. You can register and find more information at paulmeehlschool.github.io
January 31, 2024 at 9:03 AM
We are thrilled to announce the Paul Meehl Graduate School for metascience at Eindhoven University of Technology. We will offer 6-8 free workshops a year for metascience PhD students. You can register and find more information at paulmeehlschool.github.io
Reposted by Lukas Wallrich
This may well be the first: if you saw a paper in @natureportfolio.bsky.social Nat Hum Behav that you think would benefit from an independent replication, would like to do one & maybe have it published in the actual original journal, here is your chance #AcademicSky
www.nature.com/articles/s41...
www.nature.com/articles/s41...
January 26, 2024 at 8:51 AM
This may well be the first: if you saw a paper in @natureportfolio.bsky.social Nat Hum Behav that you think would benefit from an independent replication, would like to do one & maybe have it published in the actual original journal, here is your chance #AcademicSky
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Lukas Wallrich
So happy receiving your requests for NHB articles. We already have 30 ongoing robustness reproductions/replications with new data for NHB (2023-onwards).
Here is a list of studies available: osf.io/6mr3p/
Contact us at instituteforreplication@gmail.com if you want to participate!
Here is a list of studies available: osf.io/6mr3p/
Contact us at instituteforreplication@gmail.com if you want to participate!
January 29, 2024 at 2:38 PM
So happy receiving your requests for NHB articles. We already have 30 ongoing robustness reproductions/replications with new data for NHB (2023-onwards).
Here is a list of studies available: osf.io/6mr3p/
Contact us at instituteforreplication@gmail.com if you want to participate!
Here is a list of studies available: osf.io/6mr3p/
Contact us at instituteforreplication@gmail.com if you want to participate!
Reposted by Lukas Wallrich
New episode of @nulliusinverba.bsky.social on preregistration. I love recording with Smriti. She brings up an intriguing argument for preregistration that is different from my viewpoint, but very valid. We talked so long, part 2 will follow. nulliusinverba.podbean.com/e/preregistr...
January 29, 2024 at 3:56 PM
New episode of @nulliusinverba.bsky.social on preregistration. I love recording with Smriti. She brings up an intriguing argument for preregistration that is different from my viewpoint, but very valid. We talked so long, part 2 will follow. nulliusinverba.podbean.com/e/preregistr...
Reposted by Lukas Wallrich
Need a few more days to get your #SIPS2024 submission ready? No problem! We're extending submissions to February 7. #OpenScience #Metascience #Psychology #PsychSciSky #Stats #AcademicSky
SIPS 2024 – June 10-12, Nairobi, Kenya
www.improvingpsych.org
January 25, 2024 at 11:02 PM
Need a few more days to get your #SIPS2024 submission ready? No problem! We're extending submissions to February 7. #OpenScience #Metascience #Psychology #PsychSciSky #Stats #AcademicSky
Reposted by Lukas Wallrich
It's difficult for others to use your data without first reading documentation. Sharing a data dictionary or codebook alongside your data ensures that users correctly interpret variables. A few examples and templates can be found here: osf.io/e5g6t/
January 25, 2024 at 3:24 PM
It's difficult for others to use your data without first reading documentation. Sharing a data dictionary or codebook alongside your data ensures that users correctly interpret variables. A few examples and templates can be found here: osf.io/e5g6t/
Reposted by Lukas Wallrich
⚠️⚠️New Blog Post!⚠️⚠️
Centering in Moderation Analysis: A Guide
I talk about: how to center variables (including categorical variables!), when you need to use it (moderation analysis, ANOVA) and how to do it (with easystats's {datawizard})!
#rstats
Centering in Moderation Analysis: A Guide
I talk about: how to center variables (including categorical variables!), when you need to use it (moderation analysis, ANOVA) and how to do it (with easystats's {datawizard})!
#rstats
Stat’s What It’s All About - Centering in Moderation Analysis: A Guide
blog.msbstats.info
January 21, 2024 at 12:55 PM
⚠️⚠️New Blog Post!⚠️⚠️
Centering in Moderation Analysis: A Guide
I talk about: how to center variables (including categorical variables!), when you need to use it (moderation analysis, ANOVA) and how to do it (with easystats's {datawizard})!
#rstats
Centering in Moderation Analysis: A Guide
I talk about: how to center variables (including categorical variables!), when you need to use it (moderation analysis, ANOVA) and how to do it (with easystats's {datawizard})!
#rstats
Reposted by Lukas Wallrich
Full program online for our Workshop Perspectives on Scientific Error | 29 Feb, 1 and 2 March 2024! Program: docs.google.com/document/d/1... Keynotes by @simine.com @ianhussey.bsky.social @cdutilhnovaes.bsky.social & Judith Ter Schure
Registration (10 seats left): www.eventbrite.nl/e/workshop-p...
Registration (10 seats left): www.eventbrite.nl/e/workshop-p...
January 19, 2024 at 8:05 AM
Full program online for our Workshop Perspectives on Scientific Error | 29 Feb, 1 and 2 March 2024! Program: docs.google.com/document/d/1... Keynotes by @simine.com @ianhussey.bsky.social @cdutilhnovaes.bsky.social & Judith Ter Schure
Registration (10 seats left): www.eventbrite.nl/e/workshop-p...
Registration (10 seats left): www.eventbrite.nl/e/workshop-p...
Reposted by Lukas Wallrich
Interesting postdoc opportunity
"Lab² aims to be one of the most influential hubs for replications, robustness studies, and metascience in the field of economics."
wzb.hr4you.org/job/view/282...
"Lab² aims to be one of the most influential hubs for replications, robustness studies, and metascience in the field of economics."
wzb.hr4you.org/job/view/282...
January 16, 2024 at 11:08 AM
Interesting postdoc opportunity
"Lab² aims to be one of the most influential hubs for replications, robustness studies, and metascience in the field of economics."
wzb.hr4you.org/job/view/282...
"Lab² aims to be one of the most influential hubs for replications, robustness studies, and metascience in the field of economics."
wzb.hr4you.org/job/view/282...
Reposted by Lukas Wallrich
At the @psychscience.bsky.social journal AMPPS, we publish tutorials and have dedicated tutorial reviewers. TRs are go through all the code and each step of a tutorial, then provide feedback about whether it all works as it should. Grad students and post-docs are welcome to be TRs. Join us?
AMPPS Tutorial Reviewer Form
This form is designed to collect some brief information from potential "tutorial reviewers" for Advances in Methods and Practices in Psychological Science (AMPPS). AMPPS is committed to having our tut...
docs.google.com
January 15, 2024 at 8:09 PM
At the @psychscience.bsky.social journal AMPPS, we publish tutorials and have dedicated tutorial reviewers. TRs are go through all the code and each step of a tutorial, then provide feedback about whether it all works as it should. Grad students and post-docs are welcome to be TRs. Join us?
Reposted by Lukas Wallrich
Paper: "Selective and (mis)leading economics journals: Meta-research evidence"
OA: onlinelibrary.wiley.com/doi/10.1111/...
OA: onlinelibrary.wiley.com/doi/10.1111/...
January 11, 2024 at 4:41 PM
Paper: "Selective and (mis)leading economics journals: Meta-research evidence"
OA: onlinelibrary.wiley.com/doi/10.1111/...
OA: onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Lukas Wallrich
New Freakonomics radio episode with interviews of Leif Nelson, @joesimmons.bsky.social, Max Bazerman, @simine.com, @urisohn.bsky.social, and me.
Obviously about the Gino case, but also about issues of fraud more generally.
freakonomics.com/podcast/why-...
Obviously about the Gino case, but also about issues of fraud more generally.
freakonomics.com/podcast/why-...
Why Is There So Much Fraud in Academia? - Freakonomics
Why Is There So Much Fraud in Academia? - Freakonomics
freakonomics.com
January 11, 2024 at 1:23 PM
New Freakonomics radio episode with interviews of Leif Nelson, @joesimmons.bsky.social, Max Bazerman, @simine.com, @urisohn.bsky.social, and me.
Obviously about the Gino case, but also about issues of fraud more generally.
freakonomics.com/podcast/why-...
Obviously about the Gino case, but also about issues of fraud more generally.
freakonomics.com/podcast/why-...
Reposted by Lukas Wallrich
I have made some additions to my preprint "When and How to Deviate from a Preregistration" osf.io/preprints/ps... and submitted it to Collabra: Psychology. If you are reporting a preregistered study, and you find yourself in need to report a deviation, I hope it offers some guidance.
January 10, 2024 at 10:13 AM
I have made some additions to my preprint "When and How to Deviate from a Preregistration" osf.io/preprints/ps... and submitted it to Collabra: Psychology. If you are reporting a preregistered study, and you find yourself in need to report a deviation, I hope it offers some guidance.
Reposted by Lukas Wallrich
Jens Maier, Mitglied des Deutschen Bundestags 2017-2021, als Richter im Namen des Volkes in den Ruhestand versetzt (BGH-Urteil vom 5.10.2023 - RiZ (R) 1/23)
afd-verbot.de/beweise/69237
Danke @politicalbeauty.bsky.social
#noafd
afd-verbot.de/beweise/69237
Danke @politicalbeauty.bsky.social
#noafd
January 8, 2024 at 3:59 PM
Jens Maier, Mitglied des Deutschen Bundestags 2017-2021, als Richter im Namen des Volkes in den Ruhestand versetzt (BGH-Urteil vom 5.10.2023 - RiZ (R) 1/23)
afd-verbot.de/beweise/69237
Danke @politicalbeauty.bsky.social
#noafd
afd-verbot.de/beweise/69237
Danke @politicalbeauty.bsky.social
#noafd
Reposted by Lukas Wallrich
We're launching Devstart, a website to help anyone getting started with developmental science methods and programming. Here's the website with the first tutorials: tommasoghilardi.github.io/DevStart/
Please share widely! 1/4
Please share widely! 1/4
January 8, 2024 at 5:00 PM
We're launching Devstart, a website to help anyone getting started with developmental science methods and programming. Here's the website with the first tutorials: tommasoghilardi.github.io/DevStart/
Please share widely! 1/4
Please share widely! 1/4
Meta-analysis on diversity and performance: call for unpublished/recent data (please RT): we are wrapping up a registered report meta-analysis for JBP where we correlate diversity (demographic, cognitive, job-related) and team performance. If you have any unpublished/recent/hard-to-find data (1/2)
January 7, 2024 at 9:18 PM
Meta-analysis on diversity and performance: call for unpublished/recent data (please RT): we are wrapping up a registered report meta-analysis for JBP where we correlate diversity (demographic, cognitive, job-related) and team performance. If you have any unpublished/recent/hard-to-find data (1/2)
Reposted by Lukas Wallrich
How anyone could have thought that what Social Psychology needed was a new journal at Frontiers is beyond me. I can not respect the choice to publish there. Social psychologists, go to actually progressive journals, such as the International Review of Social Psychology rips-irsp.com
January 7, 2024 at 7:01 AM
How anyone could have thought that what Social Psychology needed was a new journal at Frontiers is beyond me. I can not respect the choice to publish there. Social psychologists, go to actually progressive journals, such as the International Review of Social Psychology rips-irsp.com
Reposted by Lukas Wallrich
In today's prologue release of @nulliusinverba.bsky.social we read Peirce's 'The Fixation of Belief' (and thanks to the first listener for letting me know it should be pronounced like 'purse'!). Next week's episode will be on authority in science.
January 5, 2024 at 7:05 PM
In today's prologue release of @nulliusinverba.bsky.social we read Peirce's 'The Fixation of Belief' (and thanks to the first listener for letting me know it should be pronounced like 'purse'!). Next week's episode will be on authority in science.
Reposted by Lukas Wallrich
You have a list of references (with DOIs) and want to know whether there are replication attempts for any of them? Head to t1p.de/ReD Tab: "References Checker" and paste your list in the box. You will then receive a table with all findings, including not yet coded ones.
January 5, 2024 at 10:15 AM
You have a list of references (with DOIs) and want to know whether there are replication attempts for any of them? Head to t1p.de/ReD Tab: "References Checker" and paste your list in the box. You will then receive a table with all findings, including not yet coded ones.