Context
Bandura introduced the term in his 1977 paper Self-Efficacy: Toward a Unifying Theory of Behavioral Change. His insight was that people don't act on what they want or what they intend — they act on what they believe they can actually do. Two people with identical knowledge and identical motivation will behave very differently if one believes they can succeed and the other doesn't.
Bandura identified four sources of self-efficacy. Mastery experiences — actually doing the thing successfully — are by far the strongest. Vicarious experiences (watching someone like you do it) are second. Verbal persuasion is third and weak. Physiological states (whether your body feels capable) is fourth. The practical implication is that confidence is built by doing small successful versions of the target behavior, not by being told you can do it.
Self-efficacy is domain-specific. You can have high self-efficacy for cooking and low self-efficacy for public speaking; the two don't transfer. Building self-efficacy in a depleted area requires starting smaller than feels reasonable, succeeding, and stacking those wins. Atomic habits, behavior activation, and implementation intentions all work in part because they are self-efficacy-building tools in disguise.
Bandura also distinguished self-efficacy from self-esteem, and the difference matters. Self-esteem is global "I'm a worthwhile person." Self-efficacy is specific "I can do this thing." The two often correlate but they're distinct, and self-efficacy is the one that predicts behavior. Telling someone they're great rarely changes what they do; helping them succeed at a small version of the target behavior almost always does.
How it connects to the Wheel of Life
Self-efficacy is why streaks work — every day you complete a habit is a mastery experience that strengthens your belief you can do it again tomorrow. It's also why the LifeWheel onboarding makes the first habit small enough to almost guarantee success: the goal of week one is not transformation, it's building the belief that change is possible in this sphere at all.
Related terms
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