The document presents an overview of various research methods types, including qualitative and quantitative approaches, and distinguishes between basic and applied research. It highlights different methodologies such as longitudinal, cross-sectional, descriptive, comparative, exploratory, explanatory, and casual research, with examples from health, education, and product development. The document emphasizes the importance of using suitable methodologies for systematic inquiry to gather data, analyze it, and provide insights into real-world problems.