방법 비교

	종단 연구 일지	현장 기록	종단 조사
분야	조사방법론	조사방법론	조사방법론
계열	Process / pipeline	Process / pipeline	Process / pipeline
기원 연도	1970s–1990s	Late 19th century (formalized in 20th century)	1940s (panel survey tradition); longitudinal designs codified mid-20th century
창시자	Rooted in Zimmerman & Wieder's diary-interview method (1977); developed further in qualitative longitudinal research through the 1980s–1990s	Rooted in 19th-century anthropology and sociology; systematized by ethnographers such as Bronislaw Malinowski and later Robert Emerson et al.	Established tradition; formalized in social science by Paul Lazarsfeld and colleagues (1940s panel studies)
유형	Qualitative longitudinal data collection technique	Qualitative data collection and recording technique	Quantitative / mixed-methods survey design
원전	Zimmerman, D. H., & Wieder, D. L. (1977). The diary: Diary-interview method. Urban Life, 5(4), 479–498.	Emerson, R. M., Fretz, R. I., & Shaw, L. L. (1995). Writing Ethnographic Fieldnotes. University of Chicago Press. ISBN: 978-0226206813	Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. ISBN: 978-0761922292
별칭	longitudinal reflexive journal, longitudinal researcher diary, longitudinal field diary, longitudinal research log	fieldnotes, observational notes, ethnographic notes, jottings	panel survey, repeated-measures survey, longitudinal panel study, wave survey
관련	4	6	3
요약	A longitudinal research diary is a structured, ongoing record kept by the researcher throughout an extended study, capturing observations, decisions, emerging insights, and methodological reflections at repeated intervals over weeks, months, or years. It functions simultaneously as a reflexivity tool and a secondary data source, documenting how the inquiry evolves, how researcher positionality shifts, and how contextual changes influence the data collection process across time.	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.	A longitudinal survey collects structured questionnaire data from the same individuals or units at two or more distinct points in time. By tracking the same respondents across waves, researchers can distinguish genuine change from stable individual differences, establish temporal ordering between variables, and model trajectories of attitudes, behaviors, or outcomes in ways that a single cross-sectional snapshot cannot support.