An institutional review board (IRB), also known as an independent ethics committee (IEC), ethical review board (ERB), or research ethics board (REB), is a committee at an institution that applies research ethics by reviewing the methods proposed for research done at that institution to ensure that the projects are ethical. Such boards are formally designated to approve (or reject), monitor, and review biomedical and behavioral research involving humans, and they are legally required in some countries under certain specified circumstances. Most countries use some form of IRB to safeguard ethical conduct of research so that it complies with national and international norms, regulations or codes.
The purpose of the IRB is to assure that appropriate steps are taken to protect the rights and welfare of people participating in a research study. A key goal of IRBs is to protect human subjects from physical or psychological harm, which they attempt to do by reviewing research protocols and related materials. The protocol review assesses the ethics of the research and its methods, promotes fully informed and voluntary participation by prospective subjects, and seeks to maximize the safety of subjects. They often conduct some form of risk-benefit analysis in an attempt to determine whether or not research should be conducted.
IRBs are most commonly used for studies in the fields of health and the social sciences, including anthropology, sociology, and psychology. Such studies may be clinical trials of new drugs or medical devices, studies of personal or social behavior, opinions or attitudes, or studies of how health care is delivered and might be improved. Many types of research that involves humans, such as research into which teaching methods are appropriate, unstructured research such as oral histories, journalistic research, research conducted by private individuals, and research that does not involve human subjects, are not typically required to have IRB approval.