(Schwartz, Chang, & Martin, in press)

Schwartz, D. L., Chang, J., & Martin, L., (in press). Instrumentation and innovation in design experiments: Taking the turn towards efficiency. In A. E. Kelly, R. A. Lesh, & J. Y. Baek (Eds.), Handbook of design research methods in education. Mahwah, NJ: Lawrence Erlbaum Associates.