The document discusses research methods and data collection. It covers questionnaire construction including design, attitude measurement, and scale types. It then discusses data collection and the importance of collecting quality data. The document outlines the types of data (primary and secondary), methods for collecting primary data (interviews, questionnaires, schedules, observation, and others), and precautions to take in data collection. Finally, it provides details on questionnaire design including determining needs, types, question wording, sequencing, layout, and testing. It also discusses schedule design and the importance of questionnaires and schedules.