The document discusses different types of research categorized by purpose, process, and outcome. Research can be descriptive, analytical, exploratory, or predictive depending on its purpose. The process of research determines whether it is qualitative or quantitative. Finally, the outcome separates research into applied/action research which solves practical problems, or fundamental/basic research which develops theories. Exploratory research aims to gain insights into problems through preliminary studies, while qualitative research uses methods like interviews to understand human behaviors and emotions.