The Open Education Group Review Project is an ongoing effort to provide a summary of all known empirical research on the impacts of OER adoption. Articles featured on this page focus on the efficacy of OER or teacher/student perceptions of OER in practice.
Hilton, J. "Open Educational Resources and College Textbook Choices: a Review of Research of Efficacy and Perceptions." Educational Technology Research and Development, vol. 64, no. 4, 2016, pp. 573-590, https://doi.org/10.1007/s11423-016-9434-9.
Nagle, Cailyn, and Kaitlyn Vitez. Fixing the Broken Textbook Market: Third Edition. U.S. PIRG Education Fund, 2021.