This subject introduces students to practical and theoretical issues arising in research in Health Sciences. The students will become familiar with basic methods of biostatistics and concepts of quantitative and qualitative epidemiology and evaluation research. Topics covered include univariate and bivariate statistical analysis, design of a questionnaire, the structure of medical research, measures of disease frequency, descriptive and analytical epidemiology, bias and aspects of validity, interviewing techniques, focus group work, reading and writing of medical publications. Methods and objectives of the evaluation of health services will be discussed.