A schedule is a formalized set of questions and spaces used to collect data from respondents during interviews or observations. It contains questions, statements to elicit opinions, and blank spaces for answers. The schedule provides structure and standardization to ensure objectivity. It acts as a memory aid for interviewers and facilitates analysis. Different types of schedules exist for different data collection purposes, such as rating schedules, document schedules, and observation schedules. Care must be taken to craft schedules that are comprehensive, logically ordered, avoid biasing questions, and reliably collect the intended information.