Semih Aktepe

📢 Our ViolEx 2.0 paper reached 1️⃣0️⃣0️⃣ citations 🥳

🎉 Congratulations to all RTG members!

🔗 doi.org/10.3389/fpsy...

Yesterday during lunch break I heard that my RTG is on bluesky now // follow @rtg2271.bsky.social 🥳

and, don't ask me how my brain works, but this made me want to make magic the gathering cards based on RTG researchers (there are magic card generators online)

I volunteer myself as an example

Doing SDT via GLMMs is probably one of my favorite types of modelling - it was the first, relatively simple, example of doing generative stuff and inferential stuff in the same model, and not the classic two step "get estimates and -then- throw them in an ANOVA".

I remember being confused by always having to aggregate data (to means, counts, etc) in grad school. I think we've gotten much better at that with multilevel models etc, and here's another paper making this point well about analysing binary judgment data.

New preprint by @semihaktepe.bsky.social 🎉

We compare ANOVA/SDT/GLMM for binary judgments in 20 datasets of the truth effect. #lme4

Main conclusion:
"GLMMs are a theoretically sound and practically robust method and thus superior for analyzing binary judgments in social and cognitive psychology.”

“Overall, GLMMs are a theoretically sound and practically robust method and thus superior for analyzing binary judgments in social and cognitive psychology.”

nice work, @semihaktepe.bsky.social @danielheck.bsky.social

Actually, we recently spooked away some ghosts with warnings and other scary things (with @semihaktepe.bsky.social)

New paper by my PhD student @semihaktepe.bsky.social now published 🚀

"Revisiting the effect of discrepant perceptual fluency on truth judgments" tinyurl.com/2eepue5y

--> Two experiments & a meta-analysis indicate that high visual contrast does not lead to higher truth judgments.

How does plausibility shape the truth effect?

In our new paper with @danielheck.bsky.social, we propose a Bayesian model specifying how repetition and plausibility jointly influence binary truth judgments in light of nonlinear transformations.

🔓 Read it for free: rdcu.be/eccDv

Counterfactual Reasoning in Children: Evidence from an Eye-Tracking Study with Turkish-Speakers: http://osf.io/e95wp_v1/

Revisiting the Effect of Discrepant Perceptual Fluency on Truth Judgments: http://osf.io/rcehz_v1/

forest plot of meta-analysis

New preprint by my PhD student @semihaktepe.bsky.social:

Revisiting the Effect of Discrepant Perceptual Fluency on Truth Judgments
osf.io/preprints/ps...

We could not replicate the effect that higher color contrast results in higher truth judgments in two online experiments (N=98 and N=294).

We have a new reproduction. Siepe et al. reproduce: "A systematic review and Bayesian meta-analysis of the acoustic features of infant-directed speech" by Cox et al. @naturehumbehav.bsky.social. Full report below.

We (matzekloft.bsky.social, Semih Aktepe, @danielheck.bsky.social) recently participated in a robustness reproduction of articles in Nature Human Behaviour. It was a nice learning experience to check the reproducibility of others' code and to think about useful additional robustness analyses

New preprint by my PhD student Semih Aktepe 🥳

Modeling the Link between the Plausibility of Statements and the Truth Effect
osf.io/preprints/ps...

- formalization of simulation-based model
- nonlinear scale transformations & interactions
- Bayesian modeling in Stan