Maarten van der Velde's Avatar

Maarten van der Velde

@mavdvelde

Applied cognitive scientist working on adaptive learning and assessment at @memorylabhq.bsky.social Β· PhD from @unigroningen.bsky.social Β· 🧠 cognitive modelling Β· πŸ”’ mathpsych Β· πŸ€– AI

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19.09.2023
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Latest posts by Maarten van der Velde @mavdvelde

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Our daily lives are packed w complex behaviours: reading a novel & piecing together the plot; negotiating decisions w family... How do we build mathematical models of the underlying cognitive mechanisms? Our new preprint osf.io/d2v54_v1 argues for a community approach A 🧡 1/

09.05.2025 20:45 πŸ‘ 15 πŸ” 10 πŸ’¬ 1 πŸ“Œ 2
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Fresh out: a short review article where I give an overview of different ways that across-trial temporal structure is helpful in understanding cognitive models of decision-making

osf.io/preprints/ps...

11.12.2024 13:25 πŸ‘ 102 πŸ” 32 πŸ’¬ 1 πŸ“Œ 1

Als jullie morgen voor deze bezuinigingen stemmen, zijn het wΓ©l jullie bezuinigingen!

Duik niet laf weg voor je eigen keuzes

11.12.2024 22:09 πŸ‘ 232 πŸ” 63 πŸ’¬ 3 πŸ“Œ 0

πŸ₯²

11.12.2024 16:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It was a cold that got into the bone, into the marrow, and would not be dislodged.

10.12.2024 15:45 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Table 2. Bivariate correlations between the study's variables.

Table 2. Bivariate correlations between the study's variables.

Table 4. Multivariate models predicting overload from about a dozen variables. Only time in meetings and time doing email predicted variance in overload, and both variables predicted more (not less) overload.

Table 4. Multivariate models predicting overload from about a dozen variables. Only time in meetings and time doing email predicted variance in overload, and both variables predicted more (not less) overload.

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Information about the sample

Re: "this meeting could have been an #email"

Email can ALSO predict #burnout *at least* as much as meetings.

A study of 79 employees found time on BOTH meetings AND email predicted "overload" above other factors: doi.org/10.1287/orsc...

#productivity #IOpsych #tech #HR #work

10.12.2024 11:46 πŸ‘ 17 πŸ” 4 πŸ’¬ 1 πŸ“Œ 2

Any good advice on bot prevention for online studies?
We usually use well regulated subject pools, so haven't had a problem before. But a student is struggling with a study where she has to use social media networks to find pps with specific language backgrounds.

05.12.2024 10:06 πŸ‘ 3 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0

Dankbaar aan alle collega's en studenten in het land die vanmiddag in de stromende regen op het Malieveld stonden. (En een stukje extra dankbaar aan iedereen uit Groningen, Maastricht of Heerlen, voor al die uren extra reistijd)

25.11.2024 16:20 πŸ‘ 77 πŸ” 8 πŸ’¬ 3 πŸ“Œ 0
protesters holding signs against budget cuts

protesters holding signs against budget cuts

protesters holding signs against budget cuts

protesters holding signs against budget cuts

protesters holding signs against budget cuts. 'no science no future'

protesters holding signs against budget cuts. 'no science no future'

Today we protest to support the future of the Netherlands. with more than 20.000 people we say 'Stop the cuts to science and science education!' #woinactie #dja

25.11.2024 13:42 πŸ‘ 99 πŸ” 15 πŸ’¬ 0 πŸ“Œ 0

Here's a starter pack for mathematical psychology! please add if you know folks who should be on here go.bsky.app/QNKpfeS

09.11.2024 14:17 πŸ‘ 10 πŸ” 7 πŸ’¬ 6 πŸ“Œ 2

While we are on the subject of fraudulent data and broken data processing + analysis lineage... check out my blog out how to use renv, Docker, and GitHub Actions to automate building computationally reproducible R projects!

haines-lab.com/post/2022-01...

20.11.2024 22:01 πŸ‘ 22 πŸ” 6 πŸ’¬ 3 πŸ“Œ 1
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Congratulations to my amazing PhD student Marlijn Besten who defended successfully today (co-supervised by @mariejosevantol.bsky.social and Andre Aleman)! It was a beautiful defense!

21.11.2024 17:01 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Picture of a screen showing two conference meetings. The second one is from the Society of Mathematical Psychology happening today at the Marriott Marquis Hotel in New York

Picture of a screen showing two conference meetings. The second one is from the Society of Mathematical Psychology happening today at the Marriott Marquis Hotel in New York

Finally happening!

21.11.2024 13:25 πŸ‘ 32 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

To remember something (e.g., a list of groceries), you can repeat the items aloud or in your mind, to remind you. What if you are trying to recall locations? Do we analogously use glances toward them to boost memory? I don't think so, and here is some new evidence against this idea. 🧡 #psychscisky

01.11.2024 11:34 πŸ‘ 13 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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Society for Mathematical Psychology Online conferences, news, membership functions, and information about the Society

I am currently co-organizing a preconference for Psychonomics with the topic "Memory in the Wild". Registration will close soon! Check it out: mathpsych.org/conference/17/

31.10.2024 20:07 πŸ‘ 7 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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Adding a Piece to the Puzzle: Children’s Exposure to Idioms Idioms are figurative multiword expressions that need to be learned as part of the native phrasal vocabulary. While it has been shown that non-figurative multiword expressions are acquired with langua...

New paper on children's exposure to idioms in Dutch, led by Jacolien van Rij, working with @simonesprenger.bsky.social, Floris Uithof, Sanne Poelstra and me
www.mdpi.com/2226-471X/9/...

01.11.2024 09:51 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Benefits of Speech-Based Learning for Dyslexic Learners Learn how speech-based learning helps dyslexic learners improve memory retention by overcoming typing challenges in this award-winning study.

Our researcher, PhD candidate Thomas Wilschut's study, shows that verbal responses eliminate disadvantages in vocabulary learning for dyslexic learners.

Read the blog to learn how these findings could reshape the way we teach dyslexic students:

www.memorylab.nl/blog/speech-...

17.09.2024 08:36 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Theoretical Modeling Workshop Theoretical Modeling Workshop

✨We are organising an online workshop on Theoretical Modeling for PhD candidates and Master students in cognitive science and psychology. Check out the website and the schedule: computationalcognitivescience.github.io/tm-workshop/ Registration is open! (spaces are limited) 🧡1/n

18.07.2024 19:25 πŸ‘ 29 πŸ” 23 πŸ’¬ 1 πŸ“Œ 2

Gefeliciteerd Marieke! πŸ₯³

26.06.2024 18:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Virtual MathPsych/ICCM 2024 is LIVE at mathpsych.org/conference/16/! πŸ‘€ Watch the pre-recorded talks at your leisure. Then join in for the live Q&A with the authors, held via zoom; details on
mathpsych.org/conference/1...

#iccmpsyched

16.06.2024 18:12 πŸ‘ 4 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0
OSF

Excited that our paper on an adaptive learning system for multiplication facts with Stefania Iancu, Myrthe Braam, Nathan McCabe, Thomas Wilschut and Hedderik @van-rijn.org has been accepted to @cogscisociety.bsky.social #CogSci2024!

osf.io/preprints/ps...

08.04.2024 16:18 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

GΓΌven Kandemir, @sophiawilhelm.bsky.social, Nikolai Axmacher & me studied color memoranda in working memory with impulse perturbation and multivariate pattern analysis. We found some interesting disparities with memory for orientations. The paper is now out in iScience:
www.cell.com/iscience/ful...

08.04.2024 08:36 πŸ‘ 6 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

🌲
not reproducible β‰  wrong/false/fluke
reproducible β‰  true

not reproducible β‰  poor science
reproducible β‰  good science

reproducibility of results is not a reliable indicator of truth/research quality/epistemic progress.

replication of a poorly designed study is another poorly designed study.
🌲

05.07.2023 14:47 πŸ‘ 89 πŸ” 22 πŸ’¬ 7 πŸ“Œ 5

My paper on improving data quality for online experiments has just been accepted.
Massively improved by the reviewers - collaborative peer review at its constructive best
psyarxiv.com/2fhcb

10.10.2023 13:54 πŸ‘ 84 πŸ” 38 πŸ’¬ 4 πŸ“Œ 0
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🚨 modelsummary 2.0.0 πŸ“¦ for #RStats is out now!

Draw beautiful and customizable tables for your descriptive statistics, regression models, correlations, balance, etc.

Save your tables to HTML, Word, LaTeX, PNG, Typst, and more.Β 

Check out the GIF and website for much more!

modelsummary.com

31.03.2024 13:47 πŸ‘ 111 πŸ” 42 πŸ’¬ 0 πŸ“Œ 0
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GitHub - bbolker/gLLMglnlmvlvMMM: a generative Large Language Model for generalized linear and nonlinear multivariate latent-variable multilevel/mixed modelling a generative Large Language Model for generalized linear and nonlinear multivariate latent-variable multilevel/mixed modelling - bbolker/gLLMglnlmvlvMMM

And @bbolker.bsky.social wins April Fools. github.com/bbolker/gLLM... #rstats

01.04.2024 15:41 πŸ‘ 46 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0
Lecturer in Cognitive Science and AI
Employment
0.8 - 1.0 FTE
Gross monthly salary
€ 4,332 - € 5,929
Required background
PhD
Organizational unit
Faculty of Social Sciences
Application deadline
28 April 2024will include developing a new course in Cognitive Science and, depending

Lecturer in Cognitive Science and AI Employment 0.8 - 1.0 FTE Gross monthly salary € 4,332 - € 5,929 Required background PhD Organizational unit Faculty of Social Sciences Application deadline 28 April 2024will include developing a new course in Cognitive Science and, depending

The School of Artificial Intelligence is looking for a Lecturer in Cognitive Science and AI. We are seeking a candidate who wants to pursue a career in academic teaching. Are you excited by teaching and student supervision? Do you want to inspire students to think critically about cognitive science and AI? Are you an interdisciplinary and collaborative academic  at heart? Are you committed to diversity, equity and inclusion? Do you have strong organisational skills? If so, this position may be for you!

The School of Artificial Intelligence is looking for a Lecturer in Cognitive Science and AI. We are seeking a candidate who wants to pursue a career in academic teaching. Are you excited by teaching and student supervision? Do you want to inspire students to think critically about cognitive science and AI? Are you an interdisciplinary and collaborative academic at heart? Are you committed to diversity, equity and inclusion? Do you have strong organisational skills? If so, this position may be for you!

Profile
You hold a doctoral degree, preferably in Cognitive Science, or an equivalent degree, with an interest in critical reflection on the foundations of Cognitive Science as a multidiscplinary field and the interaction between Cognitive Science and AI in science and society.
You hold an academic teaching qualification or have equivalent experience with teaching, the co-ordination of courses and student supervision, or are willing to obtain such a qualification.
You have competence in undergraduate teaching and are motivated to teach in an inclusive way.
You are strongly committed to diversity, equity and inclusion (DEI), including the decolonisation of research and educational practices.
You have an excellent command of written and spoken English.

Profile You hold a doctoral degree, preferably in Cognitive Science, or an equivalent degree, with an interest in critical reflection on the foundations of Cognitive Science as a multidiscplinary field and the interaction between Cognitive Science and AI in science and society. You hold an academic teaching qualification or have equivalent experience with teaching, the co-ordination of courses and student supervision, or are willing to obtain such a qualification. You have competence in undergraduate teaching and are motivated to teach in an inclusive way. You are strongly committed to diversity, equity and inclusion (DEI), including the decolonisation of research and educational practices. You have an excellent command of written and spoken English.

We offer
We will give you a temporary employment contract of one year with the prospect of an indefinite contract, conditional on availability of structural educational funding and after satisfactory review.
Your salary within salary scale 11 depends on your previous education and number of years of (relevant) work experience. The amounts in the scale are based on a 38-hour working week.
You will receive an 8% holiday allowance and an 8,3% end-of-year bonus. 
You will be able to use our Dual Career and Family Support Service. The Dual Career Programme assists your partner via support, tools, and resources to improve their chances of independently finding employment in the Netherlands. Our Family Support Service helps you and your partner feel welcome and at home by providing customised assistance in navigating local facilities, schools, and amenities. Also take a look at our support for international staff page to discover all our services for international employees.
You will receive

We offer We will give you a temporary employment contract of one year with the prospect of an indefinite contract, conditional on availability of structural educational funding and after satisfactory review. Your salary within salary scale 11 depends on your previous education and number of years of (relevant) work experience. The amounts in the scale are based on a 38-hour working week. You will receive an 8% holiday allowance and an 8,3% end-of-year bonus. You will be able to use our Dual Career and Family Support Service. The Dual Career Programme assists your partner via support, tools, and resources to improve their chances of independently finding employment in the Netherlands. Our Family Support Service helps you and your partner feel welcome and at home by providing customised assistance in navigating local facilities, schools, and amenities. Also take a look at our support for international staff page to discover all our services for international employees. You will receive

Please consider coming to work with us on a tenure track position: Lecturer in Cognitive Science and AI at 0.8–1.0 FTE (monthly salary: €4,332–€5,929). See:
www.ru.nl/en/working-a... & feel free to reach out to us: @irisvanrooij.bsky.social and myself. The deadline is on the 28th April.

23.03.2024 18:42 πŸ‘ 25 πŸ” 39 πŸ’¬ 0 πŸ“Œ 0

The blogs are bundled here: bsky.app/profile/memo...

29.03.2024 11:02 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Building TafelTrainer #4: Evaluating learner performance in the Multiplication TrainerΒ  | MemoryLab, voorheen SlimStampen SlimStampen blog posts. You can expect different types of content ranging from interviews with users to research summaries.

We've written a series of blog posts about the science behind the app. This one shows the results from a pilot in primary schools:
www.memorylab.nl/blog/buildin...

28.03.2024 13:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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β€ŽTimes Tables by MemoryLab β€ŽHelp your children achieve one of the most important educational goals in primary school education: the automatization of the times tables. Never too difficult or too easy; your child will work at a ...

It's really gratifying to see our @memorylabhq.bsky.social research on adaptive learning #edtech translated into a real iPad app for learning multiplication tables! πŸ”’πŸ§ 

apps.apple.com/us/app/times...

28.03.2024 13:37 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0