Research is defined as a systematic, scientific search for information to increase knowledge. It involves defining problems, formulating hypotheses, collecting and analyzing data, reaching conclusions, and testing conclusions. The main types of research are fundamental/basic research, which seeks knowledge without a defined goal, and applied research, which is problem-oriented and directed toward a specific end. The objectives of research are to discover new information, develop new tools and techniques, gain familiarity with phenomena, describe characteristics accurately, and identify causal relationships between variables. Problems that can arise in research include a lack of scientific training, delays in accessing data, human biases, insufficient time and funding, and uncontrolled variables.