So sánh phương pháp

	Nhật ký nghiên cứu dọc	Nhật ký Nghiên cứu
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1970s–1990s	1981 (methodological codification); diary use in research dates to 19th-century anthropology
Người khởi xướng	Rooted in Zimmerman & Wieder's diary-interview method (1977); developed further in qualitative longitudinal research through the 1980s–1990s	Robert G. Burgess (systematic methodological treatment)
Loại	Qualitative longitudinal data collection technique	Qualitative data collection and reflexivity tool
Công trình gốc	Zimmerman, D. H., & Wieder, D. L. (1977). The diary: Diary-interview method. Urban Life, 5(4), 479–498.	Burgess, R. G. (1981). Keeping a research diary. Cambridge Journal of Education, 11(1), 75–83.
Tên gọi khác	longitudinal reflexive journal, longitudinal researcher diary, longitudinal field diary, longitudinal research log	researcher diary, field diary, research journal, reflexive diary
Liên quan	4	6
Tóm tắt	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.	A research diary is a systematic, dated log maintained by the researcher throughout a study to record methodological decisions, emergent observations, analytical hunches, and reflections on researcher positionality. Unlike a participant diary, it is authored by the researcher and functions simultaneously as a data source, an audit trail, and a reflexivity instrument.