25.06.2024 Neuer Preprint zum Zusammenhang zwischen Plausibilität von Aussagen und dem Illusionary Truth Effect

 Modeling the link between the plausibility of statements and the illusory truth effect

Autor:innen:
Aktepe, S. C., & Heck, D. W

Abstract:

People judge repeated statements as more true than new ones. This repetition based truth effect is a robust phenomenon when statements are ambiguous. However, previous studies provided conflicting evidence on whether repetition similarly affects truth judgments for highly plausible or implausible statements. Given the lack of a formal theory explaining the interaction between repetition and plausibility on the truth effect, it is important to develop a model specifying the assumptions regarding this phenomenon. In this study, we propose a Bayesian cognitive model that builds on the simulation-based model by Fazio et al. (2019). The model formalizes how repetition and plausibility jointly influence the truth effect in light of nonlinear transformations of binary truth judgments. We test our model in a reanalysis of experimental data from two previous studies by computing Bayes factors for four competing model variants. Our findings vary across studies but indicate that the observed interaction of repetition and plausibility may be explained by a constant and additive effect of repetition on a latent probit scale.

Aktepe, S. C., & Heck, D. W. (2024). Modeling the link between the plausibility of statements and the illusory truth effect. Psyarxiv. https://osf.io/preprints/psyarxiv/9rn5c