1. The model identification test: A limited verbal science test
2. “Development of Test Items Related to Selected Concepts within the Scheme the Particle Nature of Matter,” unpublished Ph.D. dissertation, University of Wisconsin, Madison, 1969.
3. Empirical Determination of Sampling Distributions of Item Discimination Indices and a Reliability Coefficient, Madison: University of Wisconsin, 1962.
4. Statistics for Psychologists, New York: Holt, Rinehart and Winston, 1963, p. 584.
5. FORTAP: A Fortran Test Analysis Package, Madison: University of Wisconsin, 1969.