Felipe Fontana Vieira
@felipefv.bsky.social
PhD researcher @UGent | https://felipelfv.github.io | I like statistics, psychometrics, and metascience sometimes; pasta and ice cream, always | Donate to lavaan: https://lavaan.ugent.be/
Personally, a lot of the times I don’t even think
as a cognitive scientist, I can confirm we don't know how humans think
October 10, 2025 at 7:40 PM
Personally, a lot of the times I don’t even think
Well well well: www.cambridge.org/core/books/e...
Elements of Structural Equation Models (SEMs)
Cambridge Core - Psychology Research Methods and Statistics - Elements of Structural Equation Models (SEMs)
www.cambridge.org
September 19, 2025 at 3:52 PM
Well well well: www.cambridge.org/core/books/e...
Reposted by Felipe Fontana Vieira
September 17, 2025 at 8:31 AM
Reposted by Felipe Fontana Vieira
Whoa—my book is up for pre-order!
𝐌𝐨𝐝𝐞𝐥 𝐭𝐨 𝐌𝐞𝐚𝐧𝐢𝐧𝐠: 𝐇𝐨𝐰 𝐭𝐨 𝐈𝐧𝐭𝐞𝐫𝐩𝐫𝐞𝐭 𝐒𝐭𝐚𝐭 & 𝐌𝐋 𝐌𝐨𝐝𝐞𝐥𝐬 𝐢𝐧 #Rstats 𝐚𝐧𝐝 #PyData
The book presents an ultra-simple and powerful workflow to make sense of ± any model you fit
The web version will stay free forever and my proceeds go to charity.
tinyurl.com/4fk56fc8
𝐌𝐨𝐝𝐞𝐥 𝐭𝐨 𝐌𝐞𝐚𝐧𝐢𝐧𝐠: 𝐇𝐨𝐰 𝐭𝐨 𝐈𝐧𝐭𝐞𝐫𝐩𝐫𝐞𝐭 𝐒𝐭𝐚𝐭 & 𝐌𝐋 𝐌𝐨𝐝𝐞𝐥𝐬 𝐢𝐧 #Rstats 𝐚𝐧𝐝 #PyData
The book presents an ultra-simple and powerful workflow to make sense of ± any model you fit
The web version will stay free forever and my proceeds go to charity.
tinyurl.com/4fk56fc8
September 17, 2025 at 7:49 PM
Whoa—my book is up for pre-order!
𝐌𝐨𝐝𝐞𝐥 𝐭𝐨 𝐌𝐞𝐚𝐧𝐢𝐧𝐠: 𝐇𝐨𝐰 𝐭𝐨 𝐈𝐧𝐭𝐞𝐫𝐩𝐫𝐞𝐭 𝐒𝐭𝐚𝐭 & 𝐌𝐋 𝐌𝐨𝐝𝐞𝐥𝐬 𝐢𝐧 #Rstats 𝐚𝐧𝐝 #PyData
The book presents an ultra-simple and powerful workflow to make sense of ± any model you fit
The web version will stay free forever and my proceeds go to charity.
tinyurl.com/4fk56fc8
𝐌𝐨𝐝𝐞𝐥 𝐭𝐨 𝐌𝐞𝐚𝐧𝐢𝐧𝐠: 𝐇𝐨𝐰 𝐭𝐨 𝐈𝐧𝐭𝐞𝐫𝐩𝐫𝐞𝐭 𝐒𝐭𝐚𝐭 & 𝐌𝐋 𝐌𝐨𝐝𝐞𝐥𝐬 𝐢𝐧 #Rstats 𝐚𝐧𝐝 #PyData
The book presents an ultra-simple and powerful workflow to make sense of ± any model you fit
The web version will stay free forever and my proceeds go to charity.
tinyurl.com/4fk56fc8
Reposted by Felipe Fontana Vieira
New paper out with @boryslaw.bsky.social 🥳 In which we sketch out how to rethink measurement invariance causally for applied researchers. And provide a causal definition of measurement invariance!
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
September 11, 2025 at 9:11 AM
New paper out with @boryslaw.bsky.social 🥳 In which we sketch out how to rethink measurement invariance causally for applied researchers. And provide a causal definition of measurement invariance!
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Felipe Fontana Vieira
The authors "conclude that psychometric standards must be sufficiently rigorous to distinguish genuine constructs and associations from methodological artifacts that can otherwise pose a serious validity threat." Which sounds great, but is typically *impossible* to achieve in psychology
1/5
1/5
In a new paper, my colleagues and I set out to demonstrate how method biases can create spurious findings in relationship science, by using a seemingly meaningless scale (e.g., "My relationship has very good Saturn") to predict relationship outcomes. journals.sagepub.com/doi/10.1177/...
Pseudo Effects: How Method Biases Can Produce Spurious Findings About Close Relationships - Samantha Joel, John K. Sakaluk, James J. Kim, Devinder Khera, Helena Yuchen Qin, Sarah C. E. Stanton, 2025
Research on interpersonal relationships frequently relies on accurate self-reporting across various relationship facets (e.g., conflict, trust, appreciation). Y...
journals.sagepub.com
September 11, 2025 at 8:15 AM
The authors "conclude that psychometric standards must be sufficiently rigorous to distinguish genuine constructs and associations from methodological artifacts that can otherwise pose a serious validity threat." Which sounds great, but is typically *impossible* to achieve in psychology
1/5
1/5
Reposted by Felipe Fontana Vieira
#statstab #405 Best Practices for Estimating, Interpreting, and
Presenting Nonlinear Interaction Effects
Thoughts: Guidance on nonlinear interactions, reporting (probabilities) and visualisations.
#probit #logit #logisticregression #nonlinear #guide
sociologicalscience.com/download/vol...
Presenting Nonlinear Interaction Effects
Thoughts: Guidance on nonlinear interactions, reporting (probabilities) and visualisations.
#probit #logit #logisticregression #nonlinear #guide
sociologicalscience.com/download/vol...
sociologicalscience.com
August 22, 2025 at 7:20 PM
#statstab #405 Best Practices for Estimating, Interpreting, and
Presenting Nonlinear Interaction Effects
Thoughts: Guidance on nonlinear interactions, reporting (probabilities) and visualisations.
#probit #logit #logisticregression #nonlinear #guide
sociologicalscience.com/download/vol...
Presenting Nonlinear Interaction Effects
Thoughts: Guidance on nonlinear interactions, reporting (probabilities) and visualisations.
#probit #logit #logisticregression #nonlinear #guide
sociologicalscience.com/download/vol...
Reposted by Felipe Fontana Vieira
Fair coins tend to land on the same side they started: evidence from 350,757 flips.
That's the title of our paper summarizing ~650 hours of coin-tossing experimentation just published in the Journal of the American Statistical Association.
doi.org/10.1080/0162...
That's the title of our paper summarizing ~650 hours of coin-tossing experimentation just published in the Journal of the American Statistical Association.
doi.org/10.1080/0162...
August 11, 2025 at 2:20 PM
Fair coins tend to land on the same side they started: evidence from 350,757 flips.
That's the title of our paper summarizing ~650 hours of coin-tossing experimentation just published in the Journal of the American Statistical Association.
doi.org/10.1080/0162...
That's the title of our paper summarizing ~650 hours of coin-tossing experimentation just published in the Journal of the American Statistical Association.
doi.org/10.1080/0162...
Reposted by Felipe Fontana Vieira
We're happy to share the main talks for the Shiny in Production Conference 2025!
This year's lineup includes some great talks on using Shiny in real-world projects, from building apps to scaling them in production.
Looking forward to seeing everyone there!
#ShinyInProduction #RStats #DataScience
This year's lineup includes some great talks on using Shiny in real-world projects, from building apps to scaling them in production.
Looking forward to seeing everyone there!
#ShinyInProduction #RStats #DataScience
Shiny in Production 2025: Full Length Talks
We are pleased to announce the full length talks for this year's Shiny in Production conference! In this blog post, we've pulled together all of the talk abstracts to give you a full view of what to expect!
www.jumpingrivers.com
June 18, 2025 at 11:32 AM
We're happy to share the main talks for the Shiny in Production Conference 2025!
This year's lineup includes some great talks on using Shiny in real-world projects, from building apps to scaling them in production.
Looking forward to seeing everyone there!
#ShinyInProduction #RStats #DataScience
This year's lineup includes some great talks on using Shiny in real-world projects, from building apps to scaling them in production.
Looking forward to seeing everyone there!
#ShinyInProduction #RStats #DataScience
Reposted by Felipe Fontana Vieira
It was so so good to work with Monash Uni students on their first steps in C++ programming for R applications! 🚀✨ They made it! And now, they're ready to code! 🤖👾
arp.numbat.space/week11/
#rstats #rcpp #armadillo
arp.numbat.space/week11/
#rstats #rcpp #armadillo
May 23, 2025 at 2:56 AM
It was so so good to work with Monash Uni students on their first steps in C++ programming for R applications! 🚀✨ They made it! And now, they're ready to code! 🤖👾
arp.numbat.space/week11/
#rstats #rcpp #armadillo
arp.numbat.space/week11/
#rstats #rcpp #armadillo
Reposted by Felipe Fontana Vieira
Reposted by Felipe Fontana Vieira
PhD fellowship to work with me and Benedetta Franceschiello on the analysis and modelling of fast sampled fMRI data!
www.ugent.be/en/work/scie...
www.ugent.be/en/work/scie...
Doctoral fellow
www.ugent.be
May 15, 2025 at 11:55 AM
PhD fellowship to work with me and Benedetta Franceschiello on the analysis and modelling of fast sampled fMRI data!
www.ugent.be/en/work/scie...
www.ugent.be/en/work/scie...
Reposted by Felipe Fontana Vieira
Excited to launch "ggplot2 [un]charted" with @yan-holtz.bsky.social! 🎉
An online course to master #ggplot2 with exercises, quizzes, and modules—and hands-on code running in your browser!
Still WIP—sign up now for a limited discount:
👉 www.ggplot2-uncharted.com
#rstats #DataViz #DataVisualization
An online course to master #ggplot2 with exercises, quizzes, and modules—and hands-on code running in your browser!
Still WIP—sign up now for a limited discount:
👉 www.ggplot2-uncharted.com
#rstats #DataViz #DataVisualization
May 12, 2025 at 3:58 PM
Excited to launch "ggplot2 [un]charted" with @yan-holtz.bsky.social! 🎉
An online course to master #ggplot2 with exercises, quizzes, and modules—and hands-on code running in your browser!
Still WIP—sign up now for a limited discount:
👉 www.ggplot2-uncharted.com
#rstats #DataViz #DataVisualization
An online course to master #ggplot2 with exercises, quizzes, and modules—and hands-on code running in your browser!
Still WIP—sign up now for a limited discount:
👉 www.ggplot2-uncharted.com
#rstats #DataViz #DataVisualization
Reposted by Felipe Fontana Vieira
Mastering typefaces and fonts in #rstats has always been harder than it should.
I have tried to collect much of my relevant knowledge in this deep-dive blog post so you can spend your time picking the right typeface instead of cursing at the computer
I have tried to collect much of my relevant knowledge in this deep-dive blog post so you can spend your time picking the right typeface instead of cursing at the computer
Fonts in R
Taking control of fonts and text rendering in R can be challenging. This deep-dive teaches you everything (and then some) you need to know to keep your sanity
www.tidyverse.org
May 12, 2025 at 7:03 PM
Mastering typefaces and fonts in #rstats has always been harder than it should.
I have tried to collect much of my relevant knowledge in this deep-dive blog post so you can spend your time picking the right typeface instead of cursing at the computer
I have tried to collect much of my relevant knowledge in this deep-dive blog post so you can spend your time picking the right typeface instead of cursing at the computer
Every month you get a "Bad stats" article as part of Significance. This month we have something on randomised non-comparative trial (RNCT): academic.oup.com/jrssig/artic...
Bad stats: A regular series exploring slip-ups, snafus and salutary lessons from the world of statistics
Abstract. What is the secret to a happy life after a successful career in the statistical sciences? One answer is continuing engagement with the profession
academic.oup.com
May 10, 2025 at 3:51 PM
Every month you get a "Bad stats" article as part of Significance. This month we have something on randomised non-comparative trial (RNCT): academic.oup.com/jrssig/artic...
Reposted by Felipe Fontana Vieira
Not-so-modest shoutout to our own paper on interactions in which we discuss both issues — scale dependence and confounding 😋 journals.sagepub.com/doi/10.1177/...
Precise Answers to Vague Questions: Issues With Interactions - Julia M. Rohrer, Ruben C. Arslan, 2021
Psychological theories often invoke interactions but remain vague regarding the details. As a consequence, researchers may not know how to properly test them an...
journals.sagepub.com
May 10, 2025 at 10:21 AM
Not-so-modest shoutout to our own paper on interactions in which we discuss both issues — scale dependence and confounding 😋 journals.sagepub.com/doi/10.1177/...
Reposted by Felipe Fontana Vieira
Also note that "removable" here is a mathematical term: an interaction is removable if we can nullify it with a monotonic transformation. But just because an interaction is "removable" doesn't mean it isn't substantial!
May 10, 2025 at 11:48 AM
Also note that "removable" here is a mathematical term: an interaction is removable if we can nullify it with a monotonic transformation. But just because an interaction is "removable" doesn't mean it isn't substantial!
Reposted by Felipe Fontana Vieira
"It’s an odd mix of weirdly capable, but also sort of dumb and forgetful."
LLMs: they're just like me.
LLMs: they're just like me.
May 8, 2025 at 12:24 AM
"It’s an odd mix of weirdly capable, but also sort of dumb and forgetful."
LLMs: they're just like me.
LLMs: they're just like me.
Reposted by Felipe Fontana Vieira
FACT CHECK:
This viral graph from twitter claims to *prove* vaccines cause autism.
But there's something fishy about the data! Let's dive in.
This viral graph from twitter claims to *prove* vaccines cause autism.
But there's something fishy about the data! Let's dive in.
April 22, 2025 at 4:25 PM
FACT CHECK:
This viral graph from twitter claims to *prove* vaccines cause autism.
But there's something fishy about the data! Let's dive in.
This viral graph from twitter claims to *prove* vaccines cause autism.
But there's something fishy about the data! Let's dive in.
Consider this one next time instead of the airplane:
April 19, 2025 at 2:21 PM
Consider this one next time instead of the airplane:
Reposted by Felipe Fontana Vieira
I am afraid this is happening, preparing a full slide deck just on mediation analysis rn
April 16, 2025 at 1:05 PM
I am afraid this is happening, preparing a full slide deck just on mediation analysis rn