The purpose of this study is to examine differences in attainment of learning outcomes between students who take a class in an online format as compared to students who take a similar class in a traditional classroom setting. While on the face of it the online learners appear to attain these outcomes to a higher degree, when we control for withdrawal rates between the two groups, as well as demographic differences related to age and class standing, we see that online (...) learners no longer outperform classroom learners. We conclude that learner outcome attainment for the two delivery formats is similar for students who are more mature and/or are experienced college students. Inexperienced college freshmen, in contrast, better attain learner outcomes in a traditional classroom setting. (shrink)