方法对比

	恒定比较法	案例研究	扎根理论
领域	质性	质性	质性研究
方法族	Process / pipeline	Process / pipeline	Process / pipeline
起源年份	1967	1984 (seminal codification)	1967
提出者	Barney G. Glaser and Anselm L. Strauss	Robert K. Yin (systematised in Case Study Research, 1984)	Barney Glaser and Anselm Strauss
类型	Qualitative research method	Qualitative research design	Method
开创性文献	Glaser, B. G., & Strauss, A. L. (1967). The Discovery of Grounded Theory: Strategies for Qualitative Research. Aldine.	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.
别名	CCM, constant comparison, constant comparative analysis, comparative constant analysis	Vaka Çalışması (Case Study), case study design, case study methodology	GT, Grounded Theory Approach
相关	6	5	3
摘要	The Constant Comparative Method (CCM) is a systematic qualitative analysis procedure in which every newly coded incident is immediately compared with all previously coded incidents in the same category. Introduced by Glaser and Strauss in their 1967 grounded theory framework, CCM drives theory development by cycling continuously between data collection and analysis, progressively refining categories until theoretical saturation is reached. Though closely associated with grounded theory, the method has been widely adopted as a stand-alone analytic strategy across qualitative traditions.	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.