1. Material Objects: Teacher's Guide, Preliminary Edition. Science Curriculum Improvement Study. D.C. Heath and Co., Boston, 1966, p. ix.
2. Science Curriculum Improvement Study Evaluation Development: Material Objects Unit, Science Curriculum Improvement Study, University of California, Berkeley, Spring, 1966.
3. An Exploratory Investigation of the Effects of an Initial Experience with SCIS's Material Objects Unit on First Grade Children and Their Teachers. Far West Laboratory for Educational Research and Development, Berkeley, California, 1968.
4. “An Evaluation of Children's Performance on Certain Cognitive Aspects of The Material Objects Unit of the Science Curriculum Improvement Study.” Mimeograph Report, College of Education, University of Hawaii, November 1969.
5. and “Experimental and Quasi-Experimental Designs for Research.” In Handbook of Research in Teaching, (Ed.). Rand McNally and Co., 1963.