Seminar, three hours. Enforced requisites: courses 270A, 270B, Biostatistics 100B, 406, Public Health 200A, 200B, or permission of instructor. Limited to Community Health Sciences PhD students. Translation of theory into data analytic plan, its application to real data, and interpretation of results obtained through multivariate analysis. Analysis of quantitative data using range of multivariate techniques, such as linear multiple regression and logistic regression. Analysis of theoretical problem using student quantitative data or public use data. Letter grading.