"My plan for this survey is to create a self-administered questionnaire. What makes this a preferred method of research is that it can be conducted quickly using a drop-and-collect technique by national church leaders sending the survey packets to local church leaders to then distribute to willing participants. Self-administered questionnaires are relatively inexpensive and respondents are not influenced by the interviewer or her bias. Another advantage is that this type of survey allows longer batteries of questions than you could ask in person as well as giving the respondent anonymity. The disadvantages include that there is no control over how the people will interpret the questions, one must take steps to ensure high involvement rates, and one cannot be sure that the respondent who received the survey is the one who filled it out (Bernard 2006:258-261). Under the research requirements, however, the advantages outweigh the disadvantages."
Whitsett, Gregory P.
"Proposed Research Instrument for Establishing a Baseline Measurement of Buddhist Background Believers,"
Journal of Adventist Mission Studies:
Available at: https://digitalcommons.andrews.edu/jams/vol13/iss2/8