This document provides an overview of research methodology. It defines research and lists its purposes, which include testing existing knowledge, understanding issues from different perspectives, establishing reliable guides, expanding knowledge, and providing solutions to problems. The document also outlines the classification of research by purpose (basic, applied, action, evaluation) and method (historical, correlational, experimental, descriptive). Key aspects of the research process are described, including identifying a problem, developing research questions and hypotheses, designing and conducting the study, analyzing and interpreting data, and drawing conclusions. Operational definitions of terms, scope of study, and conceptual frameworks are also discussed.