American Institute of Certified Planners (AICP) Practice Exam

What is the degree of interviewer bias typically associated with mailed questionnaires in hometown surveys?

1. High

2. Medium

3. Low

4. No bias

The correct answer is: Low

Mailed questionnaires in hometown surveys are generally associated with low degrees of interviewer bias primarily because there is no direct interaction between the interviewer and the respondent. In this method, respondents fill out the questionnaires independently, which minimizes potential influences that an interviewer might exert, such as leading questions, body language, or tone of voice that can sway responses. Since the process is remote, respondents can take their time to consider their answers without immediate pressure or judgment from an interviewer, leading to more honest and reflective responses. This method of data collection can enhance the reliability of the information gathered as it reduces the subjective elements introduced by a live interviewer. Additionally, the anonymity that comes with mailed questionnaires can further encourage participants to provide responses that genuinely reflect their thoughts and opinions. While factors like the design of the questionnaire, clarity of the wording, and the sample selection still play significant roles in the overall quality of the data collected, the inherent structure of mailed questionnaires supports a lower risk of bias compared to methods where an interviewer actively engages with the participant.