Answer:overconfidence
Explanation:The overconfidence effect occurs when one's subjective confidence exceeds one's own ability to peform. It occurs when someone is too confident that they don't even consider the reality of things happening. Jamie can make a prediction that she will do 100 % well in her exam but that would be an overconfidence effect because the reality is she can't be 100% sure that she did that well until she actual sees the exam scores.