Burkhardt, H., & Schoenfeld, A. H. (2003). Improving educational research: Toward a more useful, more influential, and better funded enterprise. Educational Researcher, 32(9), 314.
United States Department of Health, Education, and Welfare. (1979). Ethical principles and guidelines for the protection of human subjects of research. https://www.hhs.gov/ohrp/sites/default/files/the-belmont-report-508c_FINAL.pdf