Module overview
This module focuses on the basic epidemiological methods and approaches that underpin an evidence-based approach to public health research and practice. The module covers each of the main types of epidemiological study design and provides a framework for critically assessing each method, differentiating association from causation. The module includes sessions on epidemiological study designs, chance, bias, confounding, measures of disease frequency and risk estimation and hypothesis testing. The module also provides guidance as to how to critically appraise published studies.