This document provides an overview of key sociological theories and research methods. It discusses positivism, which takes a scientific approach to studying social facts, and interpretivism, which rejects studying society scientifically due to humans having free will. Other theories covered include functionalism, Marxism, interactionism, phenomenology, feminism, and postmodernism. Regarding methods, it contrasts quantitative positivist methods like experiments and surveys with qualitative interpretivist methods like interviews and participant observation.