1. Adair, J. G., Sharpe, D., & Huynh, C.-L. (1989). Hawthorne control procedures in educational experiments: A reconsideration of their use and effectiveness. Review of Educational Research, 59(2), 215–228.
2. Ambrose, S. A., Bridges, M. W., DiPietro, M., Lovett, M. C., & Norman, M. K. (2010). How learning works: Seven research-based principles for smart teaching. San Francisco, CA: Jossey-Bass.
3. Andrews, T. M., Leonard, M. J., Colgrove, C. A., & Kalinowski, S. T. (2011). Active learning not associated with student learning in a random sample of college biology courses. CBE Life Sciences Education, 10(4), 394–405.
4. Asiala, M., Cottrill, J. F., Dubinsky, E., & Schwingendorf, K. E. (1997). The development of students’ graphical understanding of the derivative. The Journal of Mathematical Behavior, 16(4), 399–431.
5. Bransford, J. D., Brown, A. L., & Cocking, R. R. (Eds.) (2003). How People Learn: Brain, Mind, Experience, and School. Psychology (Expanded.). Washington D.C.: National Academy Press.