“Perceived self-efficacy is defined as people’s beliefs about their capabilities to produce designated levels of performance that exercise influence over events that affect their lives. Self-efficacy beliefs determine how people feel, think, motivate themselves, and behave. Such beliefs produce these diverse effects through four major processes. They include cognitive, motivational, affective and selection processes.”
This paper breaks down the above and further explores the following concepts:
Sources of Self-Efficacy Beliefs
Adaptive Benefits of Optimistic Self-Beliefs of Efficacy
Development and Exercise of Self-Efficacy Over the Lifespan
You might also be interested in Bandura’s book of the same title. You can purchase that here.