It is standard operating procedure for marketing research firms using phone or personal interviewers to push for responses other than ""do not know"" or ""no opinion"".

Question

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Marketing research firms often train their interviewers to try to elicit a response from the respondent, even if it means suggesting or prompting a particular answer. This is done in order to increase the amount of usable data obtained from the survey.

It Is Standard Operating Procedure for Marketing Research Firms Using