A researcher is interested in wealth literacy and how low-income families budget each month, identifying and balancing necessities with items that might be considered luxuries. She begins by conducting a small focus group, asking open-ended questions about budgeting and letting the group take the topic wherever they choose. From their responses, she develops a more extensive set of interview questions and conducts a series of individual interviews over a six-month period. After analyzing the data, she develops a detailed survey, which she administers to a large sample of families, asking them to fill it out every other month for a year. Name 5 questions should she include on her survey and why are your questions important?