Learning would be exceedingly laborious, not to mention hazardous, if people had to rely solely on the effects of their own actions to inform them what to do. Fortunately, most human behavior is learned observationally through modeling: from observing others one forms an idea of how new behaviors are performed, and on later occasions this coded information serves as a guide for action.
Albert BanduraPeople who believe they have the power to exercise some measure of control over their lives are healthier, more effective and more successful than those who lack faith in their ability to effect changes in their lives.
Albert BanduraIndeed there are many competent people who are plagued by a sense of inefficacy, and many less competent ones who remain unperturbed by impending threats because they are self-assured of their coping capabilities
Albert Bandura