This paper examined self-efficacy and self-regulatory skills and their influence on achievement in an online learning environment. This study utilized the Online Academic Success Indicators Scale (OASIS). The results of the scale were compared to previous tests measuring the predictive nature of self-efficacy and self-regulatory skills on academic success for the purpose of applying these skills to an online environment. Statistical analyses indicate strong correlations between self-efficacy and self-regulatory scores for both online learning environments and traditional learning environments. These findings suggest that high self-efficacy and positive self-regulatory behaviors are reliable predictors of academic success in online courses. Additionally, these findings validate the OASIS as an effective tool for measuring self-efficacy and self-regulation in online instruction.