“Understanding Health Research is a tool designed to help people understand and review published health research to decide how dependable and relevant a piece of research is. The tool guides users through a series of questions to ask about specific types of health research, and helps users to understand what the answers to those questions say about the quality of the research they are reading. The Useful information section provides introductions to health research concepts such as correlation and causation, scientific uncertainty and the use of statistics, and the External sources section provides links to helpful external resources.”