手法を比較

	超越現象学	ケーススタディリサーチ（Case Study Research）
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1900–1913 (Ideas I, 1913)	1984 (seminal codification)
提唱者	Edmund Husserl	Robert K. Yin (systematised in Case Study Research, 1984)
種類	Qualitative research method	Qualitative research design
原典	Moustakas, C. (1994). Phenomenological Research Methods. Sage. ISBN: 978-0803957466	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
別名	Husserlian phenomenology, eidetic phenomenology, transcendental-phenomenological research, pure phenomenology	Vaka Çalışması (Case Study), case study design, case study methodology
関連	6	5
概要	Transcendental phenomenology, founded by Edmund Husserl, is a qualitative method that seeks the universal essential structures — the invariant essences — of a consciously lived experience. By bracketing all assumptions and prior theories (epoché) and applying eidetic reduction, the researcher uncovers what an experience is in its purest, most fundamental form, independent of any particular context, culture, or individual biography. Clark Moustakas's 1994 adaptation made the method directly accessible to social-science researchers.	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.