1. Hartshorne, H. and May, M. A. 1928.Studies in deceit. Book 1. General methods and results. Book 2. Statistical methods and results, xxi + 414New York: Macmillan. ix + 306
2. Studies in the nature of character, II Studies in service and self-control.
3. Hartshorne, H., May, M. A. and Shuttleworth, F. K. 1930.Studies in deceit. Book 3. Studies in the organization of character, 503New York: Macmillan.
4. Maller, J. B. 1930.The self-marking test: a group test of honesty in school work, 40New York: Bur. Publ., Teach. Coll., Columbia Univ.