1. The Influence of the Evaluating Instrument on Students’ Learning
2. “The Relationship Between Four Testing Programs and the Resultant Achievement and Test Anxiety Levels of High-and Low-Previous Achievement Sixth Grade Artihmetic Students,” unpublished Ed. D. dissertation, Lehigh University, 1968.
3. The effects of weekly testing in the teaching of science
4. Frequent testing as a motivating factor in large lecture classes.
5. , and “The Effects of Weekly Tests upon Achievement in Psychology,” in “The Effective General College Curriculum as Revealed by Examinations,” a report of the Committee on Education Research, University of Minnesota, University of Minnesota Press, Minneapolis, 1937.