পদ্ধতির তুলনা করুন

	ট্রান্সসেন্ডেন্টাল ফেনোমেনোলজি	কেস স্টাডি গবেষণা	গ্রাউন্ডেড থিওরি	বর্ণনামূলক বিশ্লেষণ
ক্ষেত্র	গুণগত	গুণগত	গুণগত গবেষণা	গুণগত
পরিবার	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1900–1913 (Ideas I, 1913)	1984 (seminal codification)	1967	1967 (foundational); 2008 (canonical handbook)
প্রবর্তক	Edmund Husserl	Robert K. Yin (systematised in Case Study Research, 1984)	Barney Glaser and Anselm Strauss	Catherine Kohler Riessman (seminal synthesis, 2008); roots in Labov & Waletzky (1967)
ধরন	Qualitative research method	Qualitative research design	Method	Qualitative interpretive method
মৌলিক উৎস	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	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.	Riessman, C.K. (2008). Narrative Methods for the Human Sciences. Sage.
অপর নাম	Husserlian phenomenology, eidetic phenomenology, transcendental-phenomenological research, pure phenomenology	Vaka Çalışması (Case Study), case study design, case study methodology	GT, Grounded Theory Approach	narrative inquiry, life history analysis, biographical research, Anlatı Analizi (Narrative Analysis)
সম্পর্কিত	6	5	3	6
সারসংক্ষেপ	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.	Grounded Theory (GT) is a systematic qualitative research methodology in which theory emerges directly from data through iterative analysis, rather than being imposed before data collection. Developed by Barney Glaser and Anselm Strauss in 1967, GT prioritizes generating explanatory frameworks grounded in evidence.	Narrative analysis is a qualitative research method, synthesised canonically by Catherine Kohler Riessman (2008), that examines how individuals storise their lived experiences and construct meaning through the telling. Drawing on life history, biographical, and narrative inquiry traditions, it treats the story itself — not just its content — as the unit of analysis, attending to temporal sequence, plot structure, and the social context in which a narrative is produced.