เปรียบเทียบวิธี

	บันทึกภาคสนาม	การสังเกตแบบมีส่วนร่วม	การสัมภาษณ์แบบมีโครงสร้าง
สาขาวิชา	ระเบียบวิธีสำรวจ	การวิจัยเชิงคุณภาพ	ระเบียบวิธีสำรวจ
ตระกูล	Process / pipeline	Process / pipeline	Process / pipeline
ปีกำเนิด	Late 19th century (formalized in 20th century)	1922	1940s–1950s
ผู้ริเริ่ม	Rooted in 19th-century anthropology and sociology; systematized by ethnographers such as Bronislaw Malinowski and later Robert Emerson et al.	Bronislaw Malinowski	Survey research tradition; formalized by Campbell, Katona, and Kahn in mid-20th century
ประเภท	Qualitative data collection and recording technique	Method	Quantitative / mixed data collection technique
แหล่งต้นตำรับ	Emerson, R. M., Fretz, R. I., & Shaw, L. L. (1995). Writing Ethnographic Fieldnotes. University of Chicago Press. ISBN: 978-0226206813	Geertz, C. (1973). The Interpretation of Cultures. Basic Books. ISBN: 978-0465026432	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.
ชื่อเรียกอื่น	fieldnotes, observational notes, ethnographic notes, jottings	ethnographic observation, participatory observation, overt observation, immersive observation	standardized interview, formal interview, schedule-based interview, fixed-format interview
ที่เกี่ยวข้อง	6	4	4
สรุป	Field notes are detailed written records created by researchers during or immediately after direct observation in a naturalistic setting. They capture what is seen, heard, and experienced — including behaviors, interactions, physical environments, and the researcher's own analytic impressions — forming the primary data source for ethnographic and observational studies.	Participant observation is a qualitative research method in which the researcher embeds themselves within a community, organization, or social setting for an extended period, engaging in the activities and relationships of the group while systematically observing and documenting behavior, interactions, and cultural meaning. Pioneered by Malinowski in the 1920s and developed in anthropology, the method has been adopted across sociology, education, health sciences, and organizational research. The researcher functions as both insider (participating in group activities) and outsider (maintaining analytical distance), generating thick description—rich accounts of context, behavior, and meaning that reveal how people actually live and interact.	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.