Self-efficacy is defined as an individual's belief in their own capability to:

1. Self-efficacy is about confidence in a specific ability. 2. Self-efficacy is an individual's belief in their own capability. 3. That capability is to complete a task. 4. It may include previous successful completion of the exact task or a similar one. _Source: OpenStax Psychology 2e (CC BY 4.0), Ch 10 'Emotion and Motivation', sections 10.1-10.4_