Delineates various levels of theory with implications for research in library and information science. Based upon a review of literature on theory building and research methods in the social sciences, a model is proposed which displays a taxonomy of theory in hierarchical form. (EM)

Presents results of investigation into nature of 98 library administration doctoral dissertations produced in library science from 1928 to 1980, including number of dissertations per library school, research methodologies used, and characteristics of doctoral student advisors. Relevant literature, data gathering, and hypothesis testing are…