Colvard, N. B., Watson, C. E., & Park, H. (2018). The impact of open educational resources on various student success metrics. International Journal of Teaching and Learning in Higher Education, 30(2), 262-276.
Hilton, J. Open educational resources and college textbook choices: a review of research on efficacy and perceptions. Education Tech Research Dev 64, 573–590 (2016). https://doi.org/10.1007/s11423-016-9434-9
Zhao, Y., &; Satyanarayana, A., &; Cooney, C. (2020, November), Impact of Open Education Resources (OER) on Student Academic Performance and Retention Rates in Undergraduate Engineering Departments, Paper presented at 2020 Fall ASEE Mid-Atlantic Section Meeting, Virtual (hosted by Stevens Institute of2016 Technology). https://peer.asee.org/36048