1. & “The Effects of Teacher-and Student-Selected Activities on Self-Image of Achievement of High School Biology Students.” Science Education. October, 1974, pp. 295–301.
2. “Developing a Q sort to Measure Pupil Attitudes.” Education. Winter, 1976, pp. 46–49.
3. Psychometric Theory, New York: McGraw-Hill, 1967.
4. Self-concept and perceptions of role behavior of high school science students and teachers: New assessment instruments