arxivcs.AIcs.CYcs.HC2026-07-15
AI advice suppresses people's willingness to say "I don't know", even when the advice is wrong and accuracy is incentivized
Chiara Marcoccia, Walter Quattrociocchi, Valerio Capraro
Knowing when to say "I don't know" is fundamental to human judgment, yet AI assistants offer a fluent answer to almost any question. In five experiments (N = 3,132; four preregistered, one direct replication), participants answered difficult questions and could always decline to…