Self-efficacy is a person’s belief that he or she can (or cannot) successfully organize and execute an action to achieve a desired outcome in a particular situation.
Self-Efficacy Theory (Exert from: "Outdoor Adventure Pursuits: Foundations, Models, and Theories.")
Originally conceptualized by Bandura (1977), self-efficacy refers to personal judgements of how well one can preform actions in specific situations that may contain ambiguous, unpredictable, and stressful features. Self-efficacy implies a personal appraisal and weighing of both ability and non-ability factors such as:
In addition, individual efficacy statements can be made and altered by four processes: (1) performance accomplishment, (2) verbal persuasion, (3) vicarious experience, and (4) emotional arousal.
Ewert, A. W. (1989). Models and Theories in Outdoor Adventure Pursuits. In Outdoor Adventure Pursuits: Foundations, models, and Theories (pp. 91–92). essay, Publishing Horizons, Inc.