1. Described in Statistical Analysis in Educational Research, Houghton Mifflin Company, Boston, 1941. Chapter I.
2. and , Cooperative General Science Test, American Council on Education, Cooperative Test Service, New York City, 1939.
3. An Analysis of Some New Statistical Methods for Selecting Test Items
4. The Factors of the Mind, The Macmillan Company, New York, 1941.
5. Fundamental Statistics in Psychology and Education, McGraw-Hill Book Company, Inc., New York, 1942.