Presupposition projection: let’s test again!

The idiosyncratic behavior of presupposition triggers and their projection has prompted diverse experimental investigations. Some experiments examine a broader range of triggers, highlighting the variability in presupposition projection (e.g., Smith & Hall 2011; Tonhauser et al. 2018; Xue & Onea 2011), while others focus on clause-embedding predicates to differentiate factive from non-factive predicates based on their projection behavior (e.g., De Marneffe et al. 2019; Degen & Tonhauser 2022). However, certain triggers and predicates have been overlooked. To address this research gap, an experiment was conducted in this study to test the projection behavior of such triggers. The results indicate that variability exists in all triggers and call for further investigation into the contextual factors influencing projection behavior.