This second excerpt, we suggested earlier, was also a mastery experience. Cristina knew an answer that no one else knew. It is this kind of moment that she can reflect on and remember the feeling of satisfaction. It is the kind of moment that Bandura suggests is a source for strengthening self-efficacy. What is different in this excerpt is that it was a very public moment—a moment when Cristina shone, and knew she shone, in front of the whole class. We termed this a public mastery experience