New review, forthcoming in the Annual Review of Developmental Psychology: "From Seconds to Seasons and Days to Decades: Timescales in Development." Let me walk you through some key points. 👇 BC its a review, these are based on many others' work. osf.io/preprints/ps... 1/

Have you seen MATILDA (matilda.fss.uu.nl)? Which stands for Measurement, Analysis & Theory for Intensive Longitudinal Data. MATILDA is a website with educational articles that help researchers align theory, measurement, and analysis when studying processes using intensive longitudinal data.

In addition to a hiring PhD in ~October & hopefully some PhDs and postdocs ~February, if anyone would like to work with me as part of eg a Marie-Curie or something similar, please do get in touch. Topics include depression, classification, measurement, systems, time-series, & theory building.

Mixed methods in ESM? Still very uncommon. 💥 That should change, we think: we should go beyond numbers, and know what people mean with their numbers. www.nature.com/articles/s44...

We are looking forward to our next conference #SAA2026 in Vienna, Austria, hosted by @lauramkoenig.bsky.social @univie.ac.at. Submit your abstract by January 16: univie.eventsair.com/cmspreview/s...

The latest @ambulatory-assessment.org newsletter is out with important changes: 📖 from now on, our newsletters will be public, so everyone can read them on our website 💡 we created a new structure so that there is even more relevant info for the community

Using (multilevel) VAR models? Ever checked how well they actually fit your data? @jmbh.bsky.social & I created VARcheck, an R package for visual model checking for VAR models. Blogpost with workflow: bsiepe.github.io/blog/2026-05... 📝Paper: doi.org/10.31234/osf... 💻Docs: bsiepe.github.io/VARcheck/

Hehehehe

Has anyone looked at this paper more closely? I've seen many of my bachelor students refer to it when it comes to depressive disorders. Authors find worldwide depression rates doubled from 1990 to 2020, which seems like a lot. pubmed.ncbi.nlm.nih.gov/40313474/

After long time spent working on this with Jasmina, @bringmannlaura.bsky.social and @domimaciejewski.bsky.social, I'm proud to share the preprint showing that uni students cannot recognize their own EMA networks above chance level and they prefer the annotated time series. osf.io/preprints/ps...

Cool work by Josip, Jasmina, @bringmannlaura.bsky.social & @domimaciejewski.bsky.social in which uni students were unable to identify their own estimated EMA networks above chance level. Looking forward to seeing whether this replicates in people w mental health problems! osf.io/preprints/ps...

Hoe denken jongeren over hun emoties — en wat doet dat met hun welzijn? Voor mijn NWO Vidi project zoeken we (@domimaciejewski.bsky.social & @charlottev.bsky.social) een PhD-kandidaat die dit samen met ons gaat uitzoeken! 🎓 Solliciteer voor 27 april! 👉 tiu.nu/23638 @tesc-tilburgu.bsky.social

💭 Come work with me, Mark Hoogendoorn, and Dimitris Rizopoulos! We are offering a 3 year PostDoc to do research on the intersection of machine learning (ML) and statistics. 🔢 💫 You will be part of the Stress in Action consortium: stress-in-action.nl/science-of-s... Vacancy: lnkd.in/ewN5T6AA

The "Theory Paper Format" is a template for writing psychological theory papers, developed by the Taskforce Theoretical Psychology (Lorentz Workshop, 2025). Use it to structure your theoretical paper, or (for editors) consider creating journal space for theory papers doi.org/10.17605/OSF...

We’ve created an overview of the current state of theory development in psychological science (doi.org/10.31234/osf...). We're now conducting a survey on the topic to collect your views on the current state of theory development: --> forms.gle/Ct4qq4a4raun...

Great new paper led by @bringmannlaura.bsky.social, highlight the need to collect qualitative data in ESM / EMA research. #PsychSciSky 🧪 www.nature.com/articles/s44...

Perspective: Open-ended responses can improve ESM data by grounding it in real-world experiences and phenomena as they are experienced in everyday life. Handbooks and guidelines on ESM should include sections on collecting and analyzing open-ended text items. www.nature.com/articles/s44...

Great perspective piece on open-ended questions in ESM data by @bringmannlaura.bsky.social and colleagues that came out of this year's #MITNB meeting!

What a week! After 5 days, the #mitnb workshop has come to an end. We had a keynote on time scales and two workshops on careless responding and reliability. The central part of the workshops were the hackathons. We had super diverse hackathons, all designed to assess measurement in #ESM. (1/4)

1/n Out today in @jamapsychiatry.com: Interpretation Issues With the Patient Health Questionnaire Instructions. We find troubling variability in whether people think they should respond based on the frequency of the Sx or the frequency of being bothered by the Sx. jamanetwork.com/journals/jam...

From my master’s thesis to my first PhD project — excited to share that this work (together with @jordanrvl.bsky.social, @ginettelafit.bsky.social, Anja Franziska Ernst, Josip Razum, Eva Ceulemans, and @bringmannlaura.bsky.social) is now published in AMPPS! Link: doi.org/10.1177/2515...

A new publication from my PhD project on model selection for nonstationary time-series data is out, co-authored with an amazing team (Anja Franziska Ernst, @ginettelafit.bsky.social , Ward B. Eiling, @bringmannlaura.bsky.social)! Link: doi.org/10.1111/bmsp...

On the first day of December, we’re excited to announce that abstract submission for the #SAA2026 Conference in Vienna is now open! Instead of sending a letter to the North Pole, send us your abstract! We look forward to your contributions 🔗 univie.eventsair.com/saa2026/ @ambulatory-assessment.org

Any recent (or old too is fine) literature or review on most common stated reason for presenting to therapy or psychiatric treatment? I don't just mean the diagnoses people get, I mean the presenting complaint. Anything?

Thrilled to share a new paper in @jamapsychiatry.com on path asymmetry in complex dynamic systems of psychopathology! jamanetwork.com/journals/jam... With amazing collaborators @tfblanken.bsky.social, Han van der Maas, & Denny Borsboom 🥳

1st day of #MITNB meeting at @tesc-tilburgu.bsky.social. Excited for the week ahead, where we'll tackle measurement issues in #ESM, e.g. modeling processes across timescales, building a formal theory on measurement, and evaluating statistical assumptions in #ESM data. Go teamwork <3

🚨 New preprint: We compared 13 methods for detecting momentary careless responding in the WARN-D data (206k+ obs.). Tutorials guide you through each method. The takeaway? Diverging results, inherent subjectivity (to varying degrees), and a clear need for further validation. osf.io/preprints/ps...

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...

New blog post! Let's say you have two measures meant to capture the same confounder. They're highly correlated. Can you still proceed with your regression analysis? (I admit, the title is a bit of a spoiler) www.the100.ci/2025/10/13/i...

I'm starting to explore {simDAG}, a nifty #rstats package that has a nice API for specifying DAGs and then simulating data from them: robindenz1.github.io/simDAG/

We're searching for a tenure track assistant professor in clinical psychology here at the University of Arizona! Come to Tucson-- great place to live and work! 🌄🌵🏀 @uarizona.bsky.social arizona.csod.com/ux/ats/caree...

Experts with theoretical traditions, researchers experienced in approaches to theory construction, educators and policymakers work on the first steps toward creating a mature subfield of theoretical psychology. bit.ly/4nLOWoE @annemscheel.bsky.social @bringmannlaura.bsky.social @jmbh.bsky.social

How Accurate & Consistent are Self-Report responses via Visual Analogue Scales (VAS) in Ecological Momentary Assessment & Digital Studies? Examined in a massive EMA study (N = 3,761), our new #OpenAccess piece on this is just out: online.ucpress.edu/collabra/art... #PsychSciSky #AcademicSky 🧵:

1/2 Press release @unileiden.bsky.social about our upcoming JoPACS paper led by @bsiepe.bsky.social, showing that the overlap of similar constructs assessed via wearable vs EMA data is surprisingly low (n~850, 3 months). www.universiteitleiden.nl/en/news/2025...

New blog post 📣 by @ccp-kuleuven.bsky.social's @millapihlajamaki.bsky.social on six things you can do with your ESM items apart from your main, substantive analyses. Check it out here: esmitemrepositoryinfo.com/blog-posts#M... #ESM #OpenScience #Measurement

Cool perspective on depression recurrence >19,000 observations, n=37 discontinuing anti-depressants Recurrence in ~1/3rd preceded by early warning signals in affect journals.sagepub.com/doi/epub/10.... Smit et al. @mahelmich.bsky.social @bringmannlaura.bsky.social @eveliensnippe.bsky.social

2 weeks left to apply to join #HPGVienna @univie.ac.at as senior scientist. More information ⬇️ #PsychJob #PhDJob #HealthPsych

What is more useful for explaining human behavior, neuroscience or folk psychology? In this new book chapter, co-authored with Laura Bringmann, we argue for the latter. Featuring mirror neurons, tiny worms, and Steve buying a banana! www.researchgate.net/publication/...

I wrote a blog post to celebrate 10 years of loo package 🎉 (R package implementing fast Pareto smoothed importance sampling cross-validation and many other useful methods for cross-validation)

Want to learn about dynamic modeling for daily diary, experience sampling, ecological momentary assessment data? 😎 Register for our online course ‘Modeling the dynamics of intensive longitudindal data’ which starts in October 2025! 🤩 utrechtsummerschool.nl/courses/data...

We asked people to reflect on this at each EMA beep for 25 days using open text boxes (100 answers/person). We also conducted 4 interviews in the same time. Currently still coding but comparing with previous ratings or events happens far less often that literature suggests. See design osf.io/md9xa/

Folks, it's time to submit your papers to PCI Psychology. Here is our invitation to you, taken from our editorial osf.io/preprints/ps...

Say you have a simple multilevel model: y ~ 1 + (1 | group). What references are there to say (or contend with) the mean of the group-level means (group-level intercepts) is the same as the population mean (population-level intercept)?

I very much appreciate @leonievogelsmeier.bsky.social's openness about challenges in studying markers for careless responding and how to address them live while collecting data - among them lots of issues in dealing with participants' digital footprints #SAA2025

Really happy that @leonieschorrlepp.bsky.social presented the results of our mixed-methods study uncovering response processes in ESM studies 📱. Take-away: people are very inconsistent in how they come up with their answers. Talking to participants in key! 🔐 #SAA2025

Very exciting to see the work from @katiehoemann.bsky.social at #SAA2025! Participants were able to voice record a description of events. Katie clustered these over many different topics. 2 fun ones: - Complaints about rain (study was in Belgium 😅) - Complaints about the study itself (ESM...)

What an insane crowd at the #SAA2025 m-Party (also sublime dance moves)! 💃🪩🕺🏼 #EMA researchers know how to party! 👊🙏

We have a new group of Editorial Fellows at @psychscience.bsky.social journals-- check out their bios here: www.psychologicalscience.org/news/2025-ma...

To really know what is going on in people's daily life, quantitative data is not enough - we need qualitative data, too! Important talk by @bringmannlaura.bsky.social at #SAA2025 👏

First day of #SAA2025, and @bringmannlaura.bsky.social is killing it with her talk on including qualitative options in ESM! @saa2025leuven.bsky.social @ambulatory-assessment.org