This document discusses various methods for collecting and analyzing data, including observation, interviews, and questionnaires. It provides details on: 1. Types of observation like participant observation and non-participant observation. Methods include direct and indirect observation. 2. Types of interviews such as structured, unstructured, and semi-structured. Approaches include individual and group interviews. 3. Types of questionnaires like postal and self-administered questionnaires. The document also outlines advantages and disadvantages of these data collection techniques.