This document provides an overview of key concepts in research methods. It defines research as a systematic, objective inquiry undertaken to find answers to specific problems. The purposes of research are then outlined, including reviewing existing knowledge, investigating problems or situations, providing solutions, and generating new knowledge. Quantitative and qualitative approaches as well as deductive and inductive research are briefly described. Several research methodologies such as surveys, experiments, longitudinal studies, and case studies are then defined. The document concludes by outlining steps in the research process such as developing a research proposal, literature review, objectives, variables, conceptual framework, hypotheses, methods, and limitations.