This document outlines different research methods. It discusses deductive research, which starts with a theory and tests it, versus inductive research, which starts with observations and builds to a theory. It also differentiates between quantitative data, which can be measured numerically, and qualitative data, which involves studying social phenomena through methods like interviews and case studies. Finally, it lists some common sources and methods used in research, such as libraries, the internet, written works, interviews, surveys, and conversations.