Sacha Epskamp
Associate professor at the National University of Singapore
- Excited to be leading my new lab at the NUS Department of Psychology!
- Only one week left to submit abstracts for the 2026 Australasian Mathematical Psychology conference! Come join us in Singapore this February! ampc2026.com
- Please share! There are still spots available for my 3-day workshop on psychometric network modeling of longitudinal data in Singapore Dec 11 - 13! fass.nus.edu.sg/psy/network-... The workshop can be combined with a workshop Dec 8 - 10 on Foundations, Theory, and Cross-sectional Data Analysis!
- Excited to be hosting the AMPC conference on mathematical psychology, psychometrics and behavioral data science in Singapore this February! Please share with whoever might be interested! ampc2026.com
- Very excited to host two events in Singapore: the professional certification workshops on Network Psychometrics in Decemer and the 2026 edition of the Australasian Mathematical Psychology conference in February! Links for registration below. fass.nus.edu.sg/psy/network-... ampc2026.com
- Welcome to the world Luna! And happy birthday to your big brother turning 4 already ❤️
- Happy to share that our article, led by @xinkaidu.bsky.social, on confirmatory network modeling has been published in Psychological Methods! psycnet.apa.org/record/2026-...
- Save the date! Next year we will host the 2026 Australasian Mathematical Psychology Conference in Singapore! Including research in mathematical psychology, computational modeling, psychometrics and data science / AI! #AMPC26SG
- I uploaded some #Rstats tutorial videos on ggplot2, tidyr and dplyr: www.youtube.com/playlist?lis...
- Very honored to be among the new APS Fellows! www.psychologicalscience.org/members/fell...
- Reposted by Sacha Epskamp🚀 New Article Alert! "Observed correlations between person-means depend on within-person correlations" By Jonas Haslbeck (@jmbh.bsky.social) & Sacha Epskamp (@sachaepskamp.bsky.social) advances.in/psychology/1...
- I gave a 2-hour workshop on Structural Equation Modeling and Confirmatory Factor Analysis in lavaan for the Psych #rstats Club. the recording is available here: youtu.be/YrxvV8zlNLY?... Supported by @improvingpsych.org!
- Super excited today to teach the first summer school / workshop on longitudinal network modeling in Singapore and to receive the first ever translation (in Japanese!) of our textbook!
- Did anyone check if the #Paris2024 Olympics mascot follows a normal density?
- Updated preprint on potential bias in mlVAR between-person network results! osf.io/preprints/ps...
- Two more weeks to register for our workshops on network psychometrics and longitudinal data modeling in Singapore next month! Registration closes July 15. fass.nus.edu.sg/psy/network-...
- Very excited to teach the first ever workshop on psychonetrics at the Modern Modeling Methods (M3) conference in Storrs, Connecticut today! All materials are now available on the OSF: osf.io/dax8g/
- Just in time for the Modern Modeling Methods (M3) conference starting this Monday (modeling.uconn.edu), #Rstats 📦 psychonetrics version 0.13 is now on CRAN! This version (finally) includes bootstrap methods for accuracy and stability checks.
- Interested in Network Psychometrics? This summer there are workshops in three different continents! June 24 (US): modeling.uconn.edu July 1 - July 4 (Netherlands): psychosystems.org/psynets-work... July 29 - August 3 (Singapore): fass.nus.edu.sg/psy/network-...
- Just in time for #aps24sf, the psychonetrics #Rstats package for (dynamic) SEM and network psychometrics has been updated to version 0.12 on CRAN! This is a massive update that should resolve many issues with the package (e.g., convergence issues and poor start values).
- I am teaching "Research and statistics II" for the first time next semester, which covers ANOVA, correlational/regression analysis and basic psychometrics. I will teach the course using @JASPStats and I am looking for potential textbooks to use for this course. Any suggestions are very welcome!
- Reposted by Sacha EpskampOk I'm a million years late to the party, but I finally found my way to bluesky! ✋ Hi! I'm Michèle, a meta-scientist interested in statistical errors & improving overall robustness of psychological science. 🙏 If anyone has tips to build up my network here, please let me know!
- Reposted by Sacha Epskamp3/3 We also look at two families in detail (who had most data) & conduct simulation studies. Thx to all co-authors, incl @sachaepskamp.bsky.social. Paper: www.tandfonline.com/doi/full/10....
- Reposted by Sacha Epskamp📜New article w/Borsboom, @sachaepskamp.bsky.social, Hoekstra, Ostinelli, Bastiaansen & A. Cipriani Towards precision in the diagnostic profiling of patients: leveraging symptom dynamics as a clinical characterisation dimension in the assessment of major depressive disorder🧵 doi.org/10.1192/bjp....
- We still have a few open spots for the National University of Singapore professional certification on network psychometrics this summer! See for more info fass.nus.edu.sg/psy/network-....
- Incredibly honored to be awarded the @psychscience.bsky.social Janet Taylor Spence award and to see @adelaisvoranu.bsky.social recognized as Rising Star. Given all we faced together, I can't express what an honor it is to be recognized this way at the same time. t.co/5izLnkXk3W t.co/Giy2a99apl
- Reposted by Sacha EpskampCross-Lagged Panel Models for Studying Psychopathology: A Comparative Overview of Structural Equation and Panel Network Approaches: osf.io/b94qt/
- Reposted by Sacha EpskampUpcoming hybrid talk at National University of Singapore (NUS) psychology: "Registered Reports & Peer Community in Registered Report @pci-regreports.bsky.social are the future of science: Sharing experience from 25+ Replication & extensions Registered Report submissions" Details 👇
- Reposted by Sacha EpskampAbstract attached. All are welcome. Date/Time: Tuesday, Jan 23, 9:30am, Singapore (GMT+8). In person: Location: NUS campus, psychology building, room AS4-02-08. Zoom: nus-sg.zoom.us/j/8112130732... Thanks to Sacha Epskamp @sachaepskamp.bsky.social and Utek Leung for organizing.
- Reposted by Sacha EpskampPart 2 of the Freakonomics series on fraud in academic research is out. With the same people as part 1 (@briannosek.bsky.social @joesimmons.bsky.social @urisohn.bsky.social Leif Nelson, me, and Max Bazerman), plus Ivan Oransky. freakonomics.com/podcast/can-...
- Reposted by Sacha EpskampAPS Fellow @simine.com is introducing new steps to ensure transparency, rigor, and diversity in the pages of Psychological Science.
- Ok, Github co-pilot is genually impressive. How does it knows to predict this text here in a slide that I am drafting? The @psychscience.bsky.social STAR editor positions literally exist for only about a week now...
- Reposted by Sacha EpskampThe Psychological Methods group in Amsterdam is looking for an Assistant Professor. Join us! vacatures.uva.nl/UvA/job/Assi...
- Reposted by Sacha EpskampAnother shocking layoff from @posit.co, this time of Yihui Xie yihui.org/en/2024/01/b... Yihui is one of the most influential people in R of all time. His packages fundamentally changed how people work in R & data science more broadly. I'm sponsoring him on GitHub as a token of my gratitude #rstats
- Reposted by Sacha EpskampFinally! New policies for Psych Science in 2024 (part 1): Editorial 1: psychologicalscience.org/publications/psycho… Editorial 2 w/ @tomhardwicke.bsky.social : psychologicalscience.org/publications/psycho…
- Ever wondered how the psychonetrics panel-GVAR (graphical vector auto-regression) models differ from cross-lagged network models and (random intercept) cross-lagged panel models? Then check out this pre-print by Rene Freichel! osf.io/preprints/ps...
- Souvenirs from visiting my old department in Amsterdam!
- Reposted by Sacha Epskamp"Dynamic structural equation models with binary and ordinal outcomes in Mplus" - comes with a handy MPlus tutorial! link.springer.com/article/10.3... @dmcneish.bsky.social Somers & Savord
- Reposted by Sacha EpskampThanks to the work of Ria Hoekstra and the gang, you can now formally compare n=1 idiographic network models with each other, using measurement invariance testing well understood from SEM. Accepted in Psych Methods. osf.io/preprints/ps...
- Excited for 2024! Editor: - AE for Behavior Research Methods - AE for Multivariate Behavioral Research - AE for Psychological Methods - STAR (statistics, rigor and transparancy) for Psych Science Workshops: - Invited workshop at M3 conference - Professional certification at NUS Singapore
- Reposted by Sacha EpskampThinking of SEM as causal inference is really useful, it becomes a readily apparent that paths in a well fitting model are hypotheses rather than results.
- What an incredibly sad day for the Netherlands 😢
- Registration for the first ever Asian school on network psychometrics is now open! @adelaisvoranu.bsky.social and me will host two workshops in Singapore from July 29 to August 3. Completing both workshops will also grant professional certification by the NUS. fass.nus.edu.sg/psy/network-...
- I have now reviewed several papers that erroneously cite my paper when using a method termed a cross-lagged panel network (CLPN). So to be clear: I did not develop the CLPN and have nothing to do with this method. My paper: link.springer.com/article/10.1... CLPN pre-print: osf.io/preprints/ps...
- I recorded a guest lecture on introducing longitudinal network modeling in clinical psychology: www.youtube.com/playlist?lis... The third video especially might be interesting: on cross-sectional/longitudinal data, within/between person effects, ergodicity, and temporal effects.
- Very excited about this new preprint in which we solve one of the main issues in network psychometrics: estimating symptom networks in clinically severe populations. This solution is now available in the bootnet, IsingFit, IsingSampler and psychonetrics #Rstats packages! osf.io/xq8ur/
