مقایسهٔ روش‌ها

	مطالعه موردی تو در تو	پژوهش عملیاتی	نظریه داده‌بنیاد
حوزه	کیفی	پژوهش کیفی	پژوهش کیفی
خانواده	Process / pipeline	Process / pipeline	Process / pipeline
سال پیدایش	1984–1995 (Yin's foundational editions; Stake 1995)	1946	1967
پدیدآور	Robert K. Yin (systematic case study design); Robert E. Stake (naturalistic tradition)	Kurt Lewin; expanded by Kemmis, McTaggart, Reason & Bradbury	Barney Glaser and Anselm Strauss
نوع	Qualitative research method	Method	Method
منبع بنیادین	Yin, R. K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Lewin, K. (1946). Action research and minority problems. Journal of Social Issues, 2(4), 34–46.	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
نام‌های دیگر	embedded single-case design, multiple-unit case study, nested case study, embedded unit analysis	Participatory Action Research, PAR, Collaborative Inquiry	GT, Grounded Theory Approach
مرتبط	6	1	3
خلاصه	An embedded case study is a case study design in which one or more units of analysis are nested within a single overarching case. Rather than treating the case as a single, holistic entity, the researcher deliberately examines multiple sub-units — such as departments within an organisation, classrooms within a school, or programmes within a hospital — to build a richer, more nuanced understanding of the phenomenon under study. Formalised by Robert K. Yin, the design is contrasted with the holistic single-case study and with multi-case (multiple-case) designs.	Action research is a collaborative research methodology in which researchers work with practitioners and community members to investigate a problem, implement change, and evaluate outcomes, cycling through reflection, action, and learning. Developed by Kurt Lewin (1946), action research bridges research and practice, aiming simultaneously to produce knowledge and practical improvement.	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.