This document provides an introduction to research methodology. It defines research as the systematic collection and analysis of data to answer questions or solve problems. The document then discusses the importance of research in advancing knowledge and development, particularly in the medical field. It outlines four key benefits of research: guiding action, developing new tools, multiplying benefits through more efficient use of resources, and contributing to the development process. The document also describes the key characteristics and purposes of research, and explains the typical stages involved in the research process, including identifying a problem, developing a hypothesis, conducting research design and measurement, collecting and analyzing data, and generating conclusions.