write a series of questions that represent open-ended, closed-ended, matrix, and contingency questions 15 questions

Essay questions:
Compare and contrast in-person interviews and telephone surveys in terms of the role of the researcher and the types of questions appropriate for each.
Identify the difference between the various roles of the observer in field research. Offer an example of a research scenario that would be appropriate for each.
Compare and contrast the strengths and weaknesses of field research and survey research. Give specific attention to the topics of validity, reliability, and generalizability.