Compara mètodes

	Codificació selectiva	Investigació per estudi de cas	Anàlisi de contingut	Teoria Fonamentada
Camp	Qualitativa	Qualitativa	Qualitativa	Recerca qualitativa
Família	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
Any d'origen	1967 (Glaser & Strauss); refined 1990 (Strauss & Corbin)	1984 (seminal codification)	Systematised through Krippendorff's methodology work; 4th edition 2018	1967
Autor original	Barney Glaser & Anselm Strauss (classic GT); systematised by Anselm Strauss & Juliet Corbin; constructivist variant by Kathy Charmaz	Robert K. Yin (systematised in Case Study Research, 1984)	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research	Barney Glaser and Anselm Strauss
Tipus	Qualitative research method	Qualitative research design	Qualitative / mixed-method research technique	Method
Font seminal	Strauss, A., & Corbin, J. (1990). Basics of Qualitative Research: Grounded Theory Procedures and Techniques. Sage. ISBN: 978-0803932975	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
Àlies	focused coding, theoretical integration, GT selective coding, core category coding	Vaka Çalışması (Case Study), case study design, case study methodology	İçerik Analizi, systematic content coding, quantitative content analysis	GT, Grounded Theory Approach
Relacionats	6	5	5	3
Resum	Selective coding is the third and final analytic phase of grounded theory, in which the researcher systematically identifies one central or core category that integrates all other major categories developed during open and axial coding. The outcome is a coherent, data-grounded substantive theory that explains the main social process or phenomenon under study. First formalized by Glaser and Strauss (1967) and later elaborated by Strauss and Corbin (1990) and Kathy Charmaz (2006), selective coding transforms fragmented mid-level categories into a unified theoretical account.	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.	Content analysis is a systematic research technique for reducing text, visual, or media material into coded categories so that patterns can be counted, compared, and interpreted. Formalised by Klaus Krippendorff in his widely cited methodology textbook (latest edition 2018), the method sits at the boundary of qualitative and quantitative inquiry: it imposes structured, replicable coding on inherently meaning-laden material.	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.