1. COOLEY, W.W., & LOHNES, P.R.Evaluation Research in Education. New York: John Wiley & Sons, 1976.
2. CRAWLEY, F.E., & SHRUM, J.W. Effects of Learning Structure Condition on Change in Preference for Science Courses.Journal of Research in Science Teaching, 1977, 14(3), 257–262.
3. FRASER, B.J. Change in Attitudes to Science — The First National Curriculun Project.The Australian Physicist, 1977, 14(3), 53–54.
4. GARDNER, P.L. Changes in Attitudes of PSSC Students: A Third Look.Australian Science Teachers' Journal, 1974, 20(1), 99–104.
5. GORDON, R.A. Issues in Multiple Regression.American Journal of Sociology, 1968, 73, 592–616.