Empirical research involves the collection and analysis of data or information through observation or experimentation to answer a research question or test a hypothesis. This type of research is based on actual observation and experimentation rather than theory or conjecture. Empirical research can be conducted in a variety of fields, including psychology, sociology, economics, and natural sciences, among others. The results of empirical research are used to support or refute existing theories, inform policy decisions, and contribute to the overall body of knowledge in a particular field.