পদ্ধতির তুলনা করুন

	জীবন ইতিহাস গবেষণা	কেস স্টাডি গবেষণা
ক্ষেত্র	গুণগত	গুণগত
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	Early 20th century (Thomas & Znaniecki 1918–1920); systematised as interview method in the 1990s	1984 (seminal codification)
প্রবর্তক	William I. Thomas and Florian Znaniecki (sociological tradition); Robert Atkinson (interview method)	Robert K. Yin (systematised in Case Study Research, 1984)
ধরন	Qualitative research method	Qualitative research design
মৌলিক উৎস	Atkinson, R. (1998). The Life Story Interview. Sage. ISBN: 978-0761904496	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
অপর নাম	life history method, life-history interview, biographical research, personal narrative research	Vaka Çalışması (Case Study), case study design, case study methodology
সম্পর্কিত	6	5
সারসংক্ষেপ	Life history research is a qualitative method that captures the full arc of an individual's life — or a significant portion of it — through extended biographical interviewing and analysis of personal documents. Rooted in early Chicago School sociology, the method treats each life story as a window into broader social, cultural, and historical forces. The researcher and participant co-construct a narrative account that illuminates how personal experience is shaped by, and in turn shapes, wider social structures and processes.	Case study research is a qualitative research design that investigates a specific phenomenon, individual, group, organisation, or event in depth within its real-world context. Systematised by Robert K. Yin in 1984, it supports single-case and multiple-case designs and draws on multiple data sources — interviews, observation, documents, and artefacts — to build a rich, contextualised account of a bounded unit.