The term "empirical" refers to knowledge or information that is based on observation, experience, or experimentation rather than theory or pure logic. Empirical evidence is gathered through direct or indirect observation and is often used in scientific research to validate hypotheses. This approach emphasizes the importance of data collected from real-world experiences. In the context of the scientific method, empirical research involves systematic investigation and experimentation. For example, a scientist might conduct experiments to test the effects of a new medication on patients, collecting data to support or refute their initial hypothesis. This reliance on observable evidence helps ensure that conclusions are grounded in reality.