Self-appraisals of efficacy are reasonably accurate, but they diverge from action because people do not know fully what they will have to do, lack information for regulating their effort, or are hindered by external factors from doing what they can
Albert BanduraPerceived self-efficacy in coping with potential threats leads people to approach such situations anxiously, and experience of disruptive arousal may further lower their sense of efficacy that they will be able to perform skillfully
Albert Bandura