Erorile datorate operatorului de interviu in cadrul sondajelor / Survey errors generated by interviewers

The interviewer is a major source of errors in surveys, besides the researcher and the respondent. This situation is specific to the types of surveys that rely on the abilities and the activities of the interviewer, such as the street/mall-intercept, the survey at the respondent’ home or the telephone surveys. The paper analyzes the sources of errors related to the interviewer activity as well as the alternative tactics to diminish such errors with the aim of reducing the total error of the survey.