So sánh phương pháp

	Quan sát không tham gia	Khảo sát
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	Formalized mid-20th century (Gold 1958); practice dates to late 19th-century social surveys	Late 19th century; systematic social-science use from 1940s
Người khởi xướng	Raymond Gold (role typology); earlier roots in social survey movement and Chicago School sociology	Francis Galton, Charles Booth, and early social statisticians; formalised by Paul Lazarsfeld in the 1940s
Loại	Qualitative / quantitative observational data collection	Quantitative (primarily) or mixed-methods data-collection instrument
Công trình gốc	Gold, R. L. (1958). Roles in sociological field observations. Social Forces, 36(3), 217–223.	Dillman, D. A., Smyth, J. D., & Christian, L. M. (2014). Internet, Phone, Mail, and Mixed-Mode Surveys: The Tailored Design Method (4th ed.). Wiley. ISBN: 978-1118456149
Tên gọi khác	detached observation, systematic observation, structured field observation, external observation	questionnaire survey, survey research, self-report survey, questionnaire study
Liên quan	5	6
Tóm tắt	Non-participant observation is a data-collection method in which the researcher observes behavior, interactions, or events in a natural or structured setting without joining or influencing the activity under study. The observer maintains a deliberate distance from participants to minimize their own effect on the phenomena being recorded, producing field notes, behavioral tallies, or recordings that reflect naturally occurring behavior rather than behavior shaped by researcher involvement.	A survey is a systematic data-collection method in which a standardised set of questions is posed to a sample of respondents to measure attitudes, behaviours, demographics, or other constructs. Surveys can be administered via paper, telephone, online platforms, or face-to-face. They are among the most widely used instruments in social, behavioural, health, and educational research because they can reach large, geographically dispersed samples at relatively low cost.