Associate Professor at UCL Experimental Psychology; math psych & cognitive psychology; statistical and cognitive modelling in R; German migrant worker in UK
Henrik Singmann
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The Gumbel-min predicts that accuracy in the 2M-Min task is not affected by M. That is, having more new items to pick from does not make it easier to select a new item. This predictions is beautifully confirmed. Performance in the 2M-max task increases with M, an expected pattern from all SDT models
Finally, our paper is out! Together with @aliciafrancomnez.bsky.social, Javier Revuelta, and @mavadillo.bsky.social, we extend hierarchical factor models for skewed RTs and task validation, now in Psychological Methods: doi.org/10.1037/met0...
Let me briefly explain what we did and why it matters!
loving the new why_any() and when_all() functions
#rstats
dplyr.tidyverse.org/reference/wh...
There are two versions of the 2M-task. In the 2M-Max task participants have to select one item they are most certain is old (studied). In the 2M-Min task participants have to select one item they are most certain is new.
Looks like my summer read has finally arrived. #rstats @mc-stan.org
The main evidence for the Gumbel-min model does not require any model fitting. Instead, the Gumbel-min model makes a unique prediction for the 2M-task, where participants always see M studied and M non-studied items (e.g., 1 studied and 1 non-studied; 2 studied and 2 non-studied, etc).
Finally out in Psychological Review (psycnet.apa.org/doi/10.1037/...), our update to Signal Detection Theory. We show that contrary to the prevailing Gaussian assumption, evidence distributions in recognition memory are likely minimum extreme Gumbel!
Meet Angel Au, UCL PALS alumna, mental health advocate and charity founder. Angel co-founded Overcome, a charity training volunteers to deliver peer-led online mental health support to people around the world.
🔗 Read more of Angel’s story here: www.ucl.ac.uk/about/search...
A new #bmm release is available on #CRAN. With this version, #bmm now covers basic response time models. This release contains three new models plus several usability features. Here's what's in it 🧵
venpopov.com/bmm/
#rstats #bayes #openscience
New Publication Alert! 🚨
Along with @koberauer.bsky.social and @agnesrosner.bsky.social we investigated if eye movements are functional for memory retrieval in an associative recognition task and largely found evidence against it.
Read more: link.springer.com/article/10.3...
#workingmemory
