1. Path analysis and ordinal data. In (Ed.), Causal models in the social sciences. Chicago: Aldine Atherton, 1971, chap. 25, pp. 432–452.
2. A comparison of selected Wisconsin secondary schools having higher per cent enrollments in physics with those having lower per cent enrollments in physics in terms of certain identified school, teacher and student characteristics. Unpublished doctoral disseration, University of Wisconsin at Madison, 1970.
3. Path Analysis: Sociological Examples
4. Perceptions of High School Physics and Physics Teachers
5. The distinguishing characteristics of high schools with high and how enrollments in physics. Unpublished doctoral dissertation, Western Michigan University, 1970.