The Initial State of Students Taking an Introductory Physics MOOC
Aiken, J.M., Lin, S., Douglas, S.S., Greco, E.F., Thoms, B.D., Schatz, M.F. and Caballero, M.D. “The Initial State of Students Taking an Introductory Physics MOOC.” Proceedings of the Physics Education Research Conference. (2013): 53–56.