Of the below methods, the potential for interviewer bias is largest in:

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Question restatement: The prompt asks which method has the largest potential for interviewer bias among the listed options.

Option a: Mail surveys. These are self-administered with no live interviewer, so interviewer bias is minimal or nonexistent; any bias would come from question wording by the researcher, not the interviewer, making this option unlikely to have the largest bias.

Option b: Email. Similar to mail surveys, respondents complete the questionnaire on their own without an interviewer present, so interviewer bias is negligible. Any bias would stem from the instrument design rather than an interviewer’s influence.

Option c: Mall intercept interviews. Respondents are approached in a public setting by an interviewer, often in a store mall. The presence and demeanor of the interviewer, their tone, appearance, and behavior, as well as social pressure from being observed, can significantly sway responses. This setup commonly yields the highest risk of interviewer bias among typical survey methods.

Option d: Mail panels. While panel respondents are equipped to answer repeatedly, the data collection is usually self-administered or online; there is still some risk of respondent fatigue or panel conditioning, but interviewer influence per instance is limited since an interviewer is not present during completion.

Option e: CATI (Computer Assisted Telephone Interviewing). Although there is an interviewer and some potential for bias, the computer-assisted structure standardizes prompts and reduces variability in questioning, which tends to constrain interviewer effects compared with face-to-face mall intercepts. Hence, bias is present but typically less than in person in public spaces.

Summary of reasoning: Self-administered methods (mail, email, mail panels) minimize interviewer influence. CATI introduces some interviewer involvement but is more controlled and standardized. Mall intercept interviews involve real-time interaction in a public setting, where interviewer characteristics and behavior can strongly shape responses, creating the largest potential for interviewer bias among the listed methods.

MKB2705 - S2 2025 Week 4: Mini quiz #3

Of the below methods, the potential for interviewer bias is largest in:

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