Hélène Van Marcke
helenevanmarcke.bsky.social
Hélène Van Marcke
@helenevanmarcke.bsky.social
PhD student, Brain & Cognition @KULeuven | metacognition & decision-making
‼️Issue 2: info seeking for fake news **did not** increase accurate fake news detection: participants remain no better than chance at detecting fake news! (5/6)
September 8, 2025 at 4:09 PM
We find that confidence indeed drives info seeking (1️⃣, plot B) and confirmation biases (3️⃣), yet we identify two crucial issues.
❗Issue 1: confidence for fake news items does not reliably reflect accuracy (plot C), thus failing to drive information seeking towards the least accurate items. (4/6)
September 8, 2025 at 4:09 PM
Here, we tested whether these 3 principles hold in the context of fake news: 314 American adults rated news headlines' veracity, gave their confidence and could decide to seek additional info (A). When seeking info, they were presented the full news article before finalising their decision (B).(3/6)
September 8, 2025 at 4:09 PM
In Exp.2, participants were only trained on one difficulty level (easy/hard) and experienced a sudden in-/decrease in trial difficulty in the testing phase, directly leading to an in-/decrease in overall information seeking to maintain performance. (6/7)
June 16, 2025 at 3:50 PM
However, in Exp.2, an easy/hard training also induced over/underconfidence but respectively INcreased/DEcreased overall info seeking, an effect that was unmediated by confidence. At the trial level, info seeking was still driven by trial-level confidence. (4/7)
June 16, 2025 at 3:50 PM
Decision confidence is known to drive information seeking, but what happens when confidence is causally manipulated? In two experiments, we induced under- and overconfidence through a comparative feedback (Exp.1) or a training difficulty manipulation (Exp.2) and looked at information-seeking. (2/7)
June 16, 2025 at 3:50 PM