The document provides information on questionnaires and interviews as methods for collecting data in social research. It discusses the meaning, objectives, types, advantages, and disadvantages of questionnaires. It describes how to properly construct a questionnaire, including the number of questions, question structure, and covering letters. It also examines different types of interviews, including structured, unstructured, focused, and depth interviews. The key steps in conducting an interview are preparing, beginning the interview to build rapport, and properly concluding the interview.