The 'perfect' lens: Perfectionism and early adolescents' math self-efficacy development.

Students who held themselves to high standards (i.e., greater self-oriented perfectionism) reported higher levels of mastery experiences, vicarious experiences, social messages and self-efficacy. Conversely, students who felt external pressure to be perfect (i.e., socially prescribed perfectionism) reported lower levels of mastery experiences, vicarious experiences and self-efficacy, as well as higher levels of negative physiological and affective states. The relationship between perfectionism and self-efficacy was partially mediated by students' perceptions of mastery. This study extends the current literature on the sources of math self-efficacy in early adolescence by showing how a predisposition like perfectionism is associated with how adolescent learners perceive and interpret efficacy-relevant information.