1. Image of the Scientist among High-School Students
2. Attitudes of Certain High School Seniors toward Science and Scientific Careers, Scientific Manpower Project, Teachers College, Columbia University, New York, 1959.
3. For a discussion of the groups-within-treatments design, see Design and Analysis of Experiments in Psychology and Education, Houghton, Mifflin Co., Boston, 1953, chapter 7.
4. For a discussion of the limitations of the type of “pyramid” hypothesis testing conducted here, see op. cit., pages 47–49.
5. See Advanced Statistical Methods in Biometric Research, Wiley, New York, 1952, pages 258–272.