Topic overview

Start with the big picture

In epidemiology, observational studies are a broad approach to investigating relationships between exposures and health outcomes. Rather than deliberately changing what participants experience, researchers observe and analyze what is already occurring. This distinction helps place observational research alongside other study designs and frames questions about what can be learned from observed patterns. The topic provides an introduction to this design family, preparing learners to explore its forms and how they are used in epidemiologic inquiry. Because the supplied topic snapshot does not specify particular methods or examples, this preview stays at the level of the core concept rather than describing individual designs.