Ellie Bastos
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elliebastos.bsky.social
Ellie Bastos
@elliebastos.bsky.social
310 followers 780 following 26 posts
Psychological Assessment | Mental Health Research | Psychometrics and measurement | 🏳️‍⚧️ she/they | https://elliedegb.quarto.pub/psychometrics/
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elliebastos.bsky.social
Ellie Bastos @elliebastos.bsky.social · Oct 18
Migrated my book to another domain elliedegb.quarto.pub/psychometrics/ . It's a free resource on psychometric validation of instruments in R. Please share!
Advances in Psychometric Theory and Measurement for Psychological Sciences
This is an educational resource, with content at the cutting edge of scientific knowledge. It aims to improve future research, by improving researchers knowledge in the statistical inferences made, pl...
elliedegb.quarto.pub
Reposted by Ellie Bastos
pgmj.bsky.social
More tinkering with relative measurement uncertainty proposed by @bignardi.bsky.social et al, using plausible values to estimate conditional reliability (inspired by @dmcneish.bsky.social) for Rasch models with WL estimation of latent scores. Code here: github.com/pgmj/easyRas...
November 21, 2025 at 8:29 AM
Reposted by Ellie Bastos
aninehartmann.bsky.social
This spring, I coauthored (proof-read, really) this short conference paper on the differences between the two only public pathways for gender affirming care in Norway.

Now, one of the clinics has been closed to minors, and the other has been caught doing illegal and unethical research on minors.
Screenshot of page 1 of the article "The Norwegian trans health care system today" Page 2 of the article Page 3 of the article Page 4 of the article
November 20, 2025 at 12:00 PM
Reposted by Ellie Bastos
syeducation.bsky.social
the internet is working just fine, thanks.
google thinks colonel sanders is paul meehl. to be fair, meehl did write an article called, "wanted: a good cookbook," but to my knowledge he was not a colonel or knowledgeable of herbs and spices (he was from minnesota)
November 18, 2025 at 2:44 PM
Reposted by Ellie Bastos
jdmiller.bsky.social
In our rejoinder, we argue 1) Dark terminology isn't used responsibly as BL et al. claim, 2) the term can be replaced with a more sensible and scientific one, 3) data support our position (Stanton et al., 2025), and 4) popularity ≠ importance. @davidchester.bsky.social @drlynam.bsky.social
psyarxivbot.bsky.social PsyArXivBot @psyarxivbot.bsky.social · 9d
The 'Dark Triad' may be popular, but more importantly, it is irresponsible, moralizing, trivializing, and ultimately, replaceable: A rejoinder to Borraz-Leon, Rantala, and Jonason (2025): https://osf.io/u86th
November 17, 2025 at 9:42 PM
Reposted by Ellie Bastos
wesbonifay.bsky.social
Announcement: I am excited to be co-editing (with Li Cai) an upcoming Special Issue of the Journal of Mathematical Psychology on "Advances in Statistical Model Evaluation." Proposals due Feb 1. Details: www.sciencedirect.com/special-issu...

Please repost!

#quantpsych #mathpsych #philsci #statsky
Advances in Statistical Model Evaluation Submission deadline: 31 December 2026 The Special Issue accepts theoretical, methodological, applied, and philosophically oriented research on frequentist, Bayesian, and information-theoretic advances in statistical model evaluation. Topics of interest for this call for papers include but are not restricted to: • Methodological advances in fit assessment, parametric bootstrapping, cross-validation, and/or other frequentist model evaluation methods • Methodological advances in prior and/or posterior predictive model checking, specification and use of informed priors, Bayes factors, and/or other Bayesian model evaluation • Methodological advances in minimum description length, normalized maximum likelihood, and/or other information-theoretic model evaluation methods • Practical applications and tutorials of advanced model evaluation methods • Philosophy of science issues underlying statistical model evaluation • Critiques/perspectives/commentaries on statistical model evaluation
November 18, 2025 at 6:18 PM
Reposted by Ellie Bastos
tkaiser.science
🚀 New paper (open access) out in Cognitive Therapy & Research: we (@herzog.bsky.social, @evalottabrakemeier.bsky.social, @hudsongolino.bsky.social and me) ask whether group‑level symptom‑change networks in CBT actually capture what happens inside each patient. #Psychology #CBT
Must We Always Go Idiographic? - Cognitive Therapy and Research
Purpose While psychological change processes are increasingly assumed to be “non-ergodic”, prompting a shift toward idiographic approaches, the assumption of ergodicity is often accepted a priori rath...
link.springer.com
November 11, 2025 at 9:11 AM
Reposted by Ellie Bastos
elliebastos.bsky.social
Just submitted my Ph.D. dissertation today!! Really excited to share it once I finish this whole Ph.D. ending process 😁.
November 14, 2025 at 11:54 PM
Reposted by Ellie Bastos
dagophile.bsky.social
This week's episode is on the Manipulation Theorem, which is not well-known in the broader causal community, but has hugely influenced philosophers. I cover hard vs soft interventions, why causation doesn't require human agents, and whether causation requires open systems.

youtu.be/fg1ApidilVM
E9: Using Causal Graphs to Change the World
YouTube video by Causal Foundations
youtu.be
November 14, 2025 at 5:57 PM
Reposted by Ellie Bastos
dsquintana.bsky.social
Our paper on improving statistical reporting in psychology is now online 🎉

As a part of this paper, we also created the Transparent Statistical Reporting in Psychology checklist, which researchers can use to improve their statistical reporting practices

www.nature.com/articles/s44...
Transparent and comprehensive statistical reporting is critical for ensuring the credibility, reproducibility, and interpretability of psychological research. This paper offers a structured set of guidelines for reporting statistical analyses in quantitative psychology, emphasizing clarity at both the planning and results stages. Drawing on established recommendations and emerging best practices, we outline key decisions related to hypothesis formulation, sample size justification, preregistration, outlier and missing data handling, statistical model specification, and the interpretation of inferential outcomes. We address considerations across frequentist and Bayesian frameworks and fixed as well as sequential research designs, including guidance on effect size reporting, equivalence testing, and the appropriate treatment of null results. To facilitate implementation of these recommendations, we provide the Transparent Statistical Reporting in Psychology (TSRP) Checklist that researchers can use to systematically evaluate and improve their statistical reporting practices (https://osf.io/t2zpq/). In addition, we provide a curated list of freely available tools, packages, and functions that researchers can use to implement transparent reporting practices in their own analyses to bridge the gap between theory and practice. To illustrate the practical application of these principles, we provide a side-by-side comparison of insufficient versus best-practice reporting using a hypothetical cognitive psychology study. By adopting transparent reporting standards, researchers can improve the robustness of individual studies and facilitate cumulative scientific progress through more reliable meta-analyses and research syntheses.
November 14, 2025 at 8:43 PM
elliebastos.bsky.social
Just submitted my Ph.D. dissertation today!! Really excited to share it once I finish this whole Ph.D. ending process 😁.
November 14, 2025 at 11:54 PM
Reposted by Ellie Bastos
statsepi.bsky.social
www.quantamagazine.org/what-is-a-ma...
What Is a Manifold? | Quanta Magazine
In the mid-19th century, Bernhard Riemann conceived of a new way to think about mathematical spaces, providing the foundation for modern geometry and physics.
www.quantamagazine.org
November 5, 2025 at 10:32 AM
Reposted by Ellie Bastos
matti.vuorre.com
🎉 @rpsychologist.com 's PowerLMM.js is the online statistics application of the year 2025 🎉

powerlmmjs.rpsychologist.com

- Calculate power (etc) for multilevel models
- Examine effects of dropout and other important parameters
- Fast! (Instant results)
Screenshot of https://powerlmmjs.rpsychologist.com/
October 28, 2025 at 2:37 PM
elliebastos.bsky.social
First Magic the gathering deck (plus some random or signed cards)! A very happy weekend.
October 26, 2025 at 8:36 PM
Reposted by Ellie Bastos
jbakcoleman.bsky.social
Great piece on the absurdity of brute force multiverse analyses.

www.pnas.org/doi/10.1073/...
Robustness is better assessed with a few thoughtful models than with billions of regressions | PNAS
Robustness is better assessed with a few thoughtful models than with billions of regressions
www.pnas.org
October 22, 2025 at 5:29 PM
Reposted by Ellie Bastos
thefeloniousmonk.com
I fucking knew it.
A BBC news cover that says scientists reveal the secret. A photo of a fat little puffy dog is shown.
October 22, 2025 at 12:59 PM
Reposted by Ellie Bastos
bsiepe.bsky.social
We built the openESM database:
▶️60 openly available experience sampling datasets (16K+ participants, 740K+ obs.) in one place
▶️Harmonized (meta-)data, fully open-source software
▶️Filter & search all data, simply download via R/Python

Find out more:
🌐 openesmdata.org
📝 doi.org/10.31234/osf...
October 22, 2025 at 7:34 PM
Reposted by Ellie Bastos
dingdingpeng.the100.ci
The recording is now available so that you can confirm that I indeed have a German accent and color-match my outfits with my Zoom background.

youtu.be/YL0co26ng-g?...
October 21, 2025 at 3:16 PM
Reposted by Ellie Bastos
edouardmachery.bsky.social
New paper in Synthèse. Open access.
Concepts of health and disease: insights from experimental philosophy of medicine - Synthese
Synthese - The aim of the paper is to explore how people understand the concepts of health and disease, including the factors that influence their judgments about whether a condition is a disease...
link.springer.com
October 20, 2025 at 8:28 PM
elliebastos.bsky.social
Understanding why and how we can think psychological constructs as numbers is essential for advancing the field of psychology. This leads to validity of their measures, more accurate interpretations and meaningful insights into human cognition and behavior. See elliedegb.quarto.pub/psychometric...
October 20, 2025 at 10:22 AM
elliebastos.bsky.social
My first painting. I was following a Bob Ross episode and he makes it looks easy. It's not!
October 19, 2025 at 12:38 PM
Reposted by Ellie Bastos
elliebastos.bsky.social
Migrated my book to another domain elliedegb.quarto.pub/psychometrics/ . It's a free resource on psychometric validation of instruments in R. Please share!
Advances in Psychometric Theory and Measurement for Psychological Sciences
This is an educational resource, with content at the cutting edge of scientific knowledge. It aims to improve future research, by improving researchers knowledge in the statistical inferences made, pl...
elliedegb.quarto.pub
October 18, 2025 at 6:53 PM
elliebastos.bsky.social
Migrated my book to another domain elliedegb.quarto.pub/psychometrics/ . It's a free resource on psychometric validation of instruments in R. Please share!
Advances in Psychometric Theory and Measurement for Psychological Sciences
This is an educational resource, with content at the cutting edge of scientific knowledge. It aims to improve future research, by improving researchers knowledge in the statistical inferences made, pl...
elliedegb.quarto.pub
October 18, 2025 at 6:53 PM
Reposted by Ellie Bastos
kathybowrey.bsky.social
“When it comes to responsible AI use, there are, at best, many conflicting positions. Equating responsibility with disclosing genAI use conceals, in fact, several fundamental questions concerning the responsibilities that academics have to their disciplines, each other, and society at large.”
October 16, 2025 at 9:35 PM
Reposted by Ellie Bastos
dsquintana.bsky.social
Here are two "I can't believe these are free" online stats texts books that cover both underlying principles and practical applications in R that I regularly refer to.

Learning Statistics with R
learningstatisticswithr.com

Doing Meta-Analysis with R bookdown.org/MathiasHarre...
A screenshot with the following Learning statistics with R: A tutorial for psychology students and other beginners. (Version 0.6.1) Danielle Navarro (bookdown translation: Emily Kothe) 2019-01-11 Overview Learning Statistics with R covers the contents of an introductory statistics class, as typically taught to undergraduate psychology students, focusing on the use of the R statistical software. The book discusses how to get started in R as well as giving an introduction to data manipulation and writing scripts. From a statistical perspective, the book discusses descriptive statistics and graphing first, followed by chapters on probability theory, sampling and estimation, and null hypothesis testing. After introducing the theory, the book covers the analysis of contingency tables, t-tests, ANOVAs and regression. Bayesian statistics are covered at the end of the book. A screenshot with the following Welcome! Welcome to the online version of “Doing Meta-Analysis with R: A Hands-On Guide”. This book serves as an accessible introduction into how meta-analyses can be conducted in R. Essential steps for meta-analysis are covered, including pooling of outcome measures, forest plots, heterogeneity diagnostics, subgroup analyses, meta-regression, methods to control for publication bias, risk of bias assessments and plotting tools. Advanced, but highly relevant topics such as network meta-analysis, multi-/three-level meta-analyses, Bayesian meta-analysis approaches, and SEM meta-analysis are also covered. The programming and statistical background covered in the book are kept at a non-expert level. A print version of this book has been published with Chapman & Hall/CRC Press (Taylor & Francis)
October 17, 2025 at 8:43 AM