This document provides an overview of educational research. It discusses the goals of educational research which are explanation, description, prediction, and application. It also covers the characteristics of educational research such as being a formal, systematic process and investigating theories and skills in education. Additionally, the document outlines different sources of knowledge like personal experience, tradition, experts, logic, and the scientific method. Finally, it discusses the purposes of educational research including basic research, applied research, evaluation research, research and development, and action research.