Bettina Kern
@bettina-mj-kern.bsky.social
Data analysis and #rstats
Predoc researcher currently working on barriers to degree completion in informatics bachelor students.
Predoc researcher currently working on barriers to degree completion in informatics bachelor students.
Pinned
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
doi.org
If you ever want to go beyond Cohen's d for two-group comparisons, there is now a nifty Shiny app to help you navigate the multitude of possibilities!
You can read up on, calculate, and visualise 95 (!) ESs:
📃 Paper: doi.org/10.1177/2515...
🤖 Shiny App: marton-l-gy.shinyapps.io/StatCompare-...
You can read up on, calculate, and visualise 95 (!) ESs:
📃 Paper: doi.org/10.1177/2515...
🤖 Shiny App: marton-l-gy.shinyapps.io/StatCompare-...
Not spoilering the joke, also the rest of the paper is great, too: "Imagine cardiologists debating whether 2.1% or 19.1% of Austrians needed heart treatment—we would call it a planning crisis. For mental health, this uncertainty has been the status quo for a long time and still is."
New preprint 📄
How many psychotherapists does Austria need?
This one is special to me beyond the topic: it’s an update of the very first paper I ever wrote, almost a decade ago.
And I’ve always wanted to open a paper with a joke — this time I finally did. Let’s see if it survives peer review.
How many psychotherapists does Austria need?
This one is special to me beyond the topic: it’s an update of the very first paper I ever wrote, almost a decade ago.
And I’ve always wanted to open a paper with a joke — this time I finally did. Let’s see if it survives peer review.
January 15, 2026 at 3:57 PM
Not spoilering the joke, also the rest of the paper is great, too: "Imagine cardiologists debating whether 2.1% or 19.1% of Austrians needed heart treatment—we would call it a planning crisis. For mental health, this uncertainty has been the status quo for a long time and still is."
You cannot expect me *not* to repost a meme that successfully combines Parks and Rec with statistics!
June 22, 2025 at 2:32 PM
You cannot expect me *not* to repost a meme that successfully combines Parks and Rec with statistics!
Nature is healing
The proportion of p-values between .01 and .05 declined in psychology over the last decade, a strengthening of credibility.
Papers with fewer fragile p-values are cited more. Higher ranked journals assoc. with > improvement, but not higher ranked universities.
journals.sagepub.com/doi/10.1177/...
Papers with fewer fragile p-values are cited more. Higher ranked journals assoc. with > improvement, but not higher ranked universities.
journals.sagepub.com/doi/10.1177/...
June 2, 2025 at 1:31 PM
Nature is healing
Reposted by Bettina Kern
Reposted by Bettina Kern
Thanks to everybody who chimed in!
I arrived at the conclusion that (1) there's a lot of interesting stuff about interactions and (2) the figure I was looking for does not exist.
So, I made it myself! Here's a simple illustration of how to control for confounding in interactions:>
I arrived at the conclusion that (1) there's a lot of interesting stuff about interactions and (2) the figure I was looking for does not exist.
So, I made it myself! Here's a simple illustration of how to control for confounding in interactions:>
May 11, 2025 at 5:34 AM
Thanks to everybody who chimed in!
I arrived at the conclusion that (1) there's a lot of interesting stuff about interactions and (2) the figure I was looking for does not exist.
So, I made it myself! Here's a simple illustration of how to control for confounding in interactions:>
I arrived at the conclusion that (1) there's a lot of interesting stuff about interactions and (2) the figure I was looking for does not exist.
So, I made it myself! Here's a simple illustration of how to control for confounding in interactions:>
If you ever want to go beyond Cohen's d for two-group comparisons, there is now a nifty Shiny app to help you navigate the multitude of possibilities!
You can read up on, calculate, and visualise 95 (!) ESs:
📃 Paper: doi.org/10.1177/2515...
🤖 Shiny App: marton-l-gy.shinyapps.io/StatCompare-...
You can read up on, calculate, and visualise 95 (!) ESs:
📃 Paper: doi.org/10.1177/2515...
🤖 Shiny App: marton-l-gy.shinyapps.io/StatCompare-...
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
doi.org
April 4, 2025 at 1:09 PM
If you ever want to go beyond Cohen's d for two-group comparisons, there is now a nifty Shiny app to help you navigate the multitude of possibilities!
You can read up on, calculate, and visualise 95 (!) ESs:
📃 Paper: doi.org/10.1177/2515...
🤖 Shiny App: marton-l-gy.shinyapps.io/StatCompare-...
You can read up on, calculate, and visualise 95 (!) ESs:
📃 Paper: doi.org/10.1177/2515...
🤖 Shiny App: marton-l-gy.shinyapps.io/StatCompare-...
Reposted by Bettina Kern
NEW PAPER
Really glad to see this one in print: the harm due to class imbalance corrections in prediction models developed using ML/AI
Excellently led by @alcarriero.bsky.social
onlinelibrary.wiley.com/doi/epdf/10....
Really glad to see this one in print: the harm due to class imbalance corrections in prediction models developed using ML/AI
Excellently led by @alcarriero.bsky.social
onlinelibrary.wiley.com/doi/epdf/10....
January 27, 2025 at 8:01 AM
NEW PAPER
Really glad to see this one in print: the harm due to class imbalance corrections in prediction models developed using ML/AI
Excellently led by @alcarriero.bsky.social
onlinelibrary.wiley.com/doi/epdf/10....
Really glad to see this one in print: the harm due to class imbalance corrections in prediction models developed using ML/AI
Excellently led by @alcarriero.bsky.social
onlinelibrary.wiley.com/doi/epdf/10....
This is such good news for package authors and users alike. Also a great step towards easier #reproducibility.
June 15, 2024 at 4:12 PM
This is such good news for package authors and users alike. Also a great step towards easier #reproducibility.
Wikipedia, keeping you from putting German vulgarities into your powerpoint presentation since 2003 <3
May 29, 2024 at 10:09 AM
Wikipedia, keeping you from putting German vulgarities into your powerpoint presentation since 2003 <3
Reposted by Bettina Kern
The year is 2035 and 95% of all research produced by universities is based on academics filling out qualtrics surveys they send each other.
February 27, 2024 at 4:33 PM
The year is 2035 and 95% of all research produced by universities is based on academics filling out qualtrics surveys they send each other.
Reposted by Bettina Kern
We are hiring! The German Longitudinal Environmental Study opens several positions:
LMU: shorturl.at/ikyRZ (Survey Management)
LMU: shorturl.at/muLNZ (User Service)
LMU: shorturl.at/buV14 (Data Scientists)
LMU: shorturl.at/bdpzC (Survey Programmierer)
RPTU: shorturl.at/dnqAM (PostDoc spatial data)
LMU: shorturl.at/ikyRZ (Survey Management)
LMU: shorturl.at/muLNZ (User Service)
LMU: shorturl.at/buV14 (Data Scientists)
LMU: shorturl.at/bdpzC (Survey Programmierer)
RPTU: shorturl.at/dnqAM (PostDoc spatial data)
December 22, 2023 at 9:59 AM
We are hiring! The German Longitudinal Environmental Study opens several positions:
LMU: shorturl.at/ikyRZ (Survey Management)
LMU: shorturl.at/muLNZ (User Service)
LMU: shorturl.at/buV14 (Data Scientists)
LMU: shorturl.at/bdpzC (Survey Programmierer)
RPTU: shorturl.at/dnqAM (PostDoc spatial data)
LMU: shorturl.at/ikyRZ (Survey Management)
LMU: shorturl.at/muLNZ (User Service)
LMU: shorturl.at/buV14 (Data Scientists)
LMU: shorturl.at/bdpzC (Survey Programmierer)
RPTU: shorturl.at/dnqAM (PostDoc spatial data)
Reposted by Bettina Kern
Causal salad, causal design, causal inference. I did a 3 hour workshop in Leipzig yesterday on causal inference, aka why your regressions are garbage lolsob. Here below a recording of me covering the same content, I promise it's not boring #stats 🧪 (Link to slides/code github.com/rmcelreath/c...)
Science Before Statistics: Causal Inference
3 hour workshop for 2021 Leipzig Spring School in Methods for the Study of Culture and the Mind. Outline, slides, and code at https://github.com/rmcelreath/c...
www.youtube.com
December 5, 2023 at 6:59 PM
Causal salad, causal design, causal inference. I did a 3 hour workshop in Leipzig yesterday on causal inference, aka why your regressions are garbage lolsob. Here below a recording of me covering the same content, I promise it's not boring #stats 🧪 (Link to slides/code github.com/rmcelreath/c...)
Reposted by Bettina Kern
Psych people: considering the classics, are there any updated takes on the halo effect? Thinking in terms of magnitude, replicability, but also substantive interpretation! Any pointers appreciated 😇
October 31, 2023 at 3:25 PM
Psych people: considering the classics, are there any updated takes on the halo effect? Thinking in terms of magnitude, replicability, but also substantive interpretation! Any pointers appreciated 😇
Hello Bluesky!
I'm a predoc researcher investigating higher education student dropout, passionate about #OpenScience practices and #MetaScience.
Background in psychology, interested in #rstats, ML and #CausalInference and *very* interested in you if you happen to post about any of these things :)
I'm a predoc researcher investigating higher education student dropout, passionate about #OpenScience practices and #MetaScience.
Background in psychology, interested in #rstats, ML and #CausalInference and *very* interested in you if you happen to post about any of these things :)
October 31, 2023 at 3:02 PM
Hello Bluesky!
I'm a predoc researcher investigating higher education student dropout, passionate about #OpenScience practices and #MetaScience.
Background in psychology, interested in #rstats, ML and #CausalInference and *very* interested in you if you happen to post about any of these things :)
I'm a predoc researcher investigating higher education student dropout, passionate about #OpenScience practices and #MetaScience.
Background in psychology, interested in #rstats, ML and #CausalInference and *very* interested in you if you happen to post about any of these things :)