So sánh phương pháp

	Khảo sát thử nghiệm	Phỏng vấn có cấu trúc
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	Widely formalised from the 1970s-1980s	1940s–1950s
Người khởi xướng	Systematic practice codified by Jean M. Converse and Stanley Presser	Survey research tradition; formalized by Campbell, Katona, and Kahn in mid-20th century
Loại	Survey design and validation procedure	Quantitative / mixed data collection technique
Công trình gốc	Converse, J. M., & Presser, S. (1986). Survey Questions: Handcrafting the Standardized Questionnaire. Sage. ISBN: 978-0803925557	Fontana, A., & Frey, J. H. (2000). The interview: From structured questions to negotiated text. In N. K. Denzin & Y. S. Lincoln (Eds.), Handbook of Qualitative Research (2nd ed., pp. 645–672). Sage.
Tên gọi khác	pre-tested survey, survey pre-testing, questionnaire pilot study, survey field test	standardized interview, formal interview, schedule-based interview, fixed-format interview
Liên quan	6	4
Tóm tắt	A pilot-tested survey is a structured questionnaire that has been administered to a small, representative sample before the main data-collection phase. The purpose is to detect problems with wording, response options, skip logic, or timing, allowing the researcher to refine the instrument before it reaches the full sample. Pilot testing is not a separate research design; it is a quality-assurance step embedded within survey methodology that substantially reduces measurement error.	A structured interview is a data collection technique in which every participant is asked exactly the same pre-specified questions in the same order, using standardized wording. Because the interview schedule is fixed, responses across participants are directly comparable, enabling quantitative aggregation and statistical analysis. It sits at the most standardized end of the interview continuum, between the self-administered questionnaire and the semi-structured interview.