“…During the last year of R&D, we worked with medical-school students, staff and instructors to address five features of design experiments posited by Cobb et al 2003, p. 9-11), including: (a) the development of, "a class of theories about both the process of learning and the means that are designed to support that learning," (b) investigating, "the possibilities for educational improvement by bring about new forms of learning in order to study them," (c) testing a hypothesized learning process and fostering, "the emergence of other potential pathways," (d) being pragmatic in addressing practical problems faced by practitioners, and (e) containing iterative cycles of invention and revision. The design and development (Hirumi et al, 2016a) and the integration and testing of NERVE (Hirumi et al, 2016b) focused on investigating the possibilities of educational improvement, testing a hypothesized learning process, being pragmatic, and detailing the iterative cycles of invention and revision. For the purposes of the present article, we review the iterative design method followed during the last year, and discuss the development of a class of theories about learning and instructional design to examine the role of theory in informing design, and the role of testing in refining theory (Collins, 1992).…”