1. (Ed.), Taxonomy of Educational Objectives. Handbook 1, Cognitive Domain. New York, David McKarp Company, 1956.
2. A study of the relationship of classroom questions and social studies achievement of second-grade children. (Doctoral dissertation, University of Washington), 1971. Dissertation Abstracts International, 1971, 2543A (University Micro Films No. 71-28385).
3. Possible interpretive problems in analyses using group means as the experimental unit.
4. The Use of Questions in Teaching
5. Effects of Questioning Techniques and Recitation on Student Learning