Survey is a technique of gathering information from the public by asking a number of structured questions to respondents. In this case, the key to the success of the collection of information is on the interview process. In addition, the interviewer skills in interacting with respondents in determining the quality of information collected. The interviewer has the main task to make the respondents can participate in surveys and records information from respondents.
Interviewer influence on the success of a survey can be seen in three conditions, which is: First, the interviewer plays a major role in the code 1 answers rate (response rate) were obtained. Second, the interviewer is responsible to initiating (initation) and motivate respondents. Third, the interviewer should handle the parts interactions interviews and debriefing process raw (no bias).
Key to a successful interview is the interviewer is able to invite respondents to participate were interviewed, ensure confidentiality and managed to properly explain the purpose of the survey is being conducted.