The document discusses various research methods for collecting primary data, including interviews, observations, and questionnaires. It provides details on the interview method, including advantages like higher reliability and response rates compared to other methods, as well as disadvantages such as being time-consuming. Structured, semi-structured, and unstructured interviews are described. Observation methods like overt versus covert and structured versus unstructured are also outlined. Finally, the document defines what a questionnaire is and lists characteristics of a good questionnaire.