Intentionally departing from the designed interviewer guidelines that could result in the contamination of the data. Falsification includes: 1) fabricating all or part of an interview by recording data that were not provided by a designated survey respondent and reporting them as answers of that respondent; 2) deliberately misreporting disposition codes and falsifying process data (e.g., recording a respondent refusal as ineligible for the sample or reporting a fictitious contact attempt); 3) deliberately miscoding the answer to a question in order to avoid follow-up questions; and 4) deliberately interviewing a nonsampled person in order to reduce effort required to complete an interview, or intentionally misrepresenting the data collection process to the survey management.

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