fication in the recording of respondent answers
Sloppiness that results in the incorrect or incomplete recording of respondent answers
Inappropriate behavior that influences the answers of respondents
ôPhysical presence biasö, which means that the demeanor of the interviewer or a respondentÆs perception of the status of the interviewer affects the answers of respondents to survey questions
A non-response error occurs when a survey sample loses its representativeness. In other words, when the people selected for participation through a randomized selection process do not participate (because of refusal or the inability to locate), t
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