18.104.22.168. Face-to-face interviews
- The interviewer can explain the importance of a survey and clarify questions if needed.
- The data can often be entered directly into the computer database and checked for a valid data entry, question by question.
- Answers can easily be corrected in situ. It may become apparent
immediately that some answers are inconsistent or wrong, especially if suitable
data checks are built into a computer questionnaire programme.
- A representative list of beekeepers is needed; there are few countries in which it would be available through beekeeping associations, census registers or the veterinary services.
- The presence of an interviewer may influence the answers, unless the interviewer is well-trained.
- This method is time-consuming and costly because of: travel costs (unless some form of cluster sampling is used), the need for many highly trained interviewers, and the need for multiple call-backs to ensure a high response rate.