How is self-efficacy primarily developed?

Self-efficacy is the belief in one's ability to succeed in specific situations or accomplish a task. It is primarily developed through past experiences and observations, which include personal successes and the experiences of others. When individuals succeed in similar tasks, they gain confidence in their abilities, reinforcing their belief in themselves. Additionally, observing others succeed, especially those who are perceived as similar or relatable, can foster a sense of capability and increase one's self-efficacy.

The other options do not primarily contribute to the development of self-efficacy. Financial rewards may motivate performance but do not inherently build belief in one's capability to perform a task. Employee training sessions can improve skills and provide knowledge but do not necessarily strengthen self-efficacy unless they include elements that encourage personal successes and observations. Strict supervision may lead to compliance but can undermine self-efficacy by fostering dependency rather than independence and self-belief. Thus, the most effective way to develop self-efficacy is through personal achievements and observing the successes of peers.