Self efficacy is built through four processes:
These four are in order of importance. Most critical way to build self efficacy is through a mastery experience.
Mastery experience is basically a successful experience of mastering a task. Mastery experiences happen when the learner has reached the point where they understand the content knowledge enough to perform a task on their own or masters the task. It happens if the learner goes in to sufficient depth on material he trying to learn. It happens as a result of immersion in a particular field or task. It happens with plenty of prior exposure to the content.