Isn't participating in such research usually fairly anonymous? And I'm guessing the researchers didn't tell the participants how they were going to interpret "I

Isn't participating in such research usually fairly anonymous? And I'm guessing the researchers didn't tell the participants how they were going to interpret "I don't know" vs wrong answers? > Expressing appropriate levels of confidence is a skill, That's interesting, confidence can be gamed, just like other traits in personality tests