For many activities, people cannot rely solely on themselves in evaluating their ability level because such judgments require inferences from probabilistic indicants of talent about which they may have limited knowledge. Self-appraisals are, therefore, partly based on the opinions of others who presumably possess evaluative competence
Albert BanduraIn order to succeed, people need a sense of self-efficacy, to struggle together with resilience to meet the inevitable obstacles and inequities of life.
Albert BanduraThe presence of many interacting influences, including the attainments of others, create further leeway in how one's performances and outcomes are cognitively appraised
Albert Bandura