1. Improving science teaching through realistic research
2. “Preliminary Considerations in Objective Test Construction,” Educational Measurement. Washington, D.C.: The American Council on Education, 1953, Chapter 5.
3. “A Comparison of Iowa High Schools Ranking High and Low in Mathematical Achievement,” unpublished Ph.D. dissertation, State University of Iowa, Iowa City, 1960.
4. “The Relative Achievement of the Objectives of Secondary School Science in a Representative Sampling of Fifty-six Minnesota Schools,” unpublished Ph.D. dissertation, University of Minnesota, Minneapolis, 1949.