Research is defined as a systematic investigation to discover and establish facts. It involves collecting data through scientific methods to solve problems and gain knowledge. Research has key characteristics such as being controlled, rigorous, systematic, and verifiable. There are different types of research methods including descriptive, analytical, quantitative, and qualitative research. Research methodology refers to the systematic approach used to conduct research, including defining the problem, reviewing literature, collecting and analyzing data, and reporting results. The goal of research is to add to the body of knowledge in a scientific field.