1. Ahn, J. (2016). Enrollment and achievement in Ohio’s virtual charter schools. (Not sure how to cite the rest, it’s a report)
2. Al-Azawei, A., & Al-Masoudy, M. (2020). Predicting learners’ performance in virtual learning environment (VLE) based on demographic, behavioral and engagement antecedents. International Journal of Emerging Technology in Learning, 15(9), 6–75.
3. Barbour, M. K. (2012). It’s not that tough: Students speak about their online learning experiences. Turkish Online Journal of Distance Education, 13(2), 226–241.
4. Barbour, M. K. (2018). The landscape of K-12 online learning: Examining what is known. Handbook of Distance Education, 4, 521–544.
5. Bettinger, E. P., Fox, L., Loeb, S., & Taylor, E. S. (2017). Virtual classrooms: How online college courses affect student success. American Economic Review, 107(9), 2855–2875.