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2. Dean, W. L. (1982). A comparison of the learning styles of educable mentally retarded students and learning disabled students. Unpublished doctoral dissertation, University of Mississippi.
3. De Bello, T. (1985). A critical analysis of the achievement and attitude effects of administrative assignments to social studies writing instruction based on identified, eighth grade students' learning style preferences for learning alone, with peers, or with teachers. Unpublished doctoral dissertation, St. John's University.
4. Della Valle, J. (1984). An experimental investigation of the relationship(s) between preference for mobility and the word recognition scores of seventh grade students to provide supervisory and administrative guidelines for the organization of effective instructional environments. Unpublished doctoral dissertation, St. John's University.