Student over-confidence study

Self-testing may offset students' overconfidence
Students who are overly confident in their learning abilities may benefit from more self-testing, say two Kent State psychologists studying metacomprehension. "Our research consistently shows that without checking, people often believe they've remembered something correctly when in fact they haven't."
Dunlosky, J., & Rawson, K. (2007). Middle School Students 'Extremely Overconfident' In Their Own Learning. Kent State University. Kent, OH: Kent State University.