Action research originated in the 1940s in the United States and England from the work of Kurt Lewin. It is a cyclical process of identifying a problem, designing and taking action, recording and reflecting on results, and then retesting based on reflections. One of its main appeals is that it aims to both improve the subject of study through interventions while also generating knowledge. It uses methods like participant observation and interviews. Experts define it as a cycle of posing questions, gathering data, reflecting, and deciding on a course of action.