This document discusses different types of research methods. It outlines quantitative and qualitative research approaches, as well as mixed methods. Some key types discussed include pure/basic research which generates new knowledge, applied research which solves problems, qualitative research using text analysis, descriptive research determining "how things are", analytical research using existing data, fundamental research increasing scientific knowledge, conceptual research developing theories, empirical research using evidence and data, longitudinal research observing variables over time, laboratory research with experiments, and exploratory research for undefined problems.