The proposed study aims to investigate the relative strength of the four traditional sources of self-efficacy beliefs (mastery experiences, vicarious experience, social persuasion, and physiological/affective states) in students enrolled in an asynchronous college math course. Approximately 300 students will be invited to complete a survey measuring their self-efficacy and the sources of their self-efficacy beliefs. Multiple regression analysis will be used to determine how much each source contributes to students' overall self-efficacy. The results are expected to provide guidance on how to best design asynchronous courses to promote student self-efficacy.