1. Cronbach, L. J . , Gleser, G. C., Nanda, H. & Rajaratnam, N. (1972). The dependability of behavioral measurements: Theory of generalizability of scores and profiles. New York: Wiley.
2. Guion, R. M. (1979). Principles of work sample testing: 111. Construction and evaluation of work sample tests (TR-79-A10). Alexandria, V A : U.S. Army Research Institute for the Behavioral and Social Sciences.
3. Murnane, R. J. & Raizen, S. A. (Eds.). (1989). Improving indicators of the quality of science and mathematics education. Washington, DC: National Academy Press.
4. Raizen, S. A, Baron, J. B., Champagne, A. B., Haertel, E., Mullis, I. & Oakes, J. (1989). Assessment in elementary school science education. Washington, DC: National Center for Improving Science Education.