Reflect on your understanding by working through these review questions.

1. What principles and ideas about knowledge underpin the use of structured instruments?
2. What are the advantages and disadvantages of interviews compared with self-completed questionnaires?
3. How do telephone interviews differ from face to face interviews?
4. How do email and web-based questionnaires differ and what are their advantages over postal surveys?
5. What should you tell potential respondents when you first approach them (a) for an interview and (b) when asking them to complete and return a questionnaire?
6. What can you do to ensure that a structured interview goes well?
7. What can you do to encourage a good response rate to a self-completion questionnaire survey?