So sánh phương pháp

	Nghiên cứu lịch sử cuộc đời theo chiều dọc	Nghiên cứu tiểu sử
Lĩnh vực	Định tính	Định tính
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1918 (origins); longitudinal application developed from 1980s onward	Late 19th–early 20th century (Dilthey ~1883; Thomas & Znaniecki 1918–1920)
Người khởi xướng	Thomas & Znaniecki (Polish Peasant, 1918–1920); elaborated by Ken Plummer, Daniel Bertaux	Wilhelm Dilthey (hermeneutic foundations); Thomas & Znaniecki (sociological application); Norman Denzin (interpretive biography)
Loại	Qualitative longitudinal research design	Qualitative research method
Công trình gốc	Plummer, K. (2001). Documents of Life 2: An Invitation to a Critical Humanism. Sage. ISBN: 978-0761952244	Denzin, N. K. (1989). Interpretive Biography. Sage Publications.
Tên gọi khác	longitudinal biographical research, life history longitudinal design, repeated life history study, longitudinal oral biography	life history research, biographical method, life story research, biographical narrative inquiry
Liên quan	6	6
Tóm tắt	Longitudinal life history research follows the same participants across multiple points in time, collecting repeated in-depth accounts of how their life stories evolve, how they narrate past events differently over time, and how biography intersects with social change. It combines the interpretive depth of life history methodology with the temporal sensitivity of longitudinal design, capturing both the content of lived experience and its unfolding across the life course.	Biographical research is a qualitative method that examines individual lives in depth — through life-history interviews, personal documents, letters, and autobiographical narratives — to understand how personal experience intersects with social, historical, and cultural forces. Rooted in Wilhelm Dilthey's hermeneutics and made prominent in sociology by Thomas and Znaniecki's study of Polish immigrants, it treats the individual life story as a window onto broader social structures and processes. It belongs to the narrative inquiry subfamily alongside oral history and life-story research.