The research question
2 the scientific method
1 People and Measurements— The Nuts & Bolts of Research Optimizing Subjects & Variables and Introduction to Kaiser Division of Research Alan S. Go, M.D.
1 Subjects and Measurements— The Nuts & Bolts of Research Optimizing Subjects & Variables Doug Bauer, M.D. Depts. of Medicine, Epidemiology and Biostatistics.