手法を比較

	縦断的伝記的研究	縦断的ケーススタディ
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1990s–2000s (consolidated as a named approach ca. 2000)	1984–1990 (foundational methodological codification)
提唱者	Tom Wengraf, Prue Chamberlayne, Joanna Bornat (BNIM tradition); also Robert Miller and Rita Charon in parallel strands	Robert K. Yin (case study methodology); Andrew M. Pettigrew (longitudinal field research)
種類	Qualitative longitudinal research design	Qualitative research design
原典	Wengraf, T. (2001). Qualitative Research Interviewing: Biographic Narrative and Semi-Structured Methods. Sage. ISBN: 978-0761953517	Yin, R. K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
別名	LBR, longitudinal narrative research, biographical-longitudinal method, repeated biographical interviewing	longitudinal case research, panel case study, repeated case study, temporal case study
関連	5	6
概要	Longitudinal Biographical Research (LBR) is a qualitative approach that combines in-depth biographical or narrative interviewing with a repeated, time-extended data-collection design. Participants are interviewed at multiple time points — sometimes years apart — so that researchers can trace how individuals construct, revise, and re-narrate their life stories as circumstances change. The method captures both the content of life histories and the dynamic process through which meaning is made and remade over time.	A longitudinal case study is a qualitative research design that combines the in-depth, contextually rich focus of case study methodology with repeated data collection across multiple time points. Rather than capturing a single snapshot, it follows one or a small number of cases — an individual, group, organisation, or programme — over months or years to trace how processes, relationships, and meanings evolve. This design is well suited to questions about how and why things change, not merely what the state of affairs is at one moment.