手法を比較

	選択的コーディング	Thematic Analysis
分野	質的手法	質的研究
系統	Process / pipeline	Process / pipeline
提唱年	1967 (Glaser & Strauss); refined 1990 (Strauss & Corbin)	2006
提唱者	Barney Glaser & Anselm Strauss (classic GT); systematised by Anselm Strauss & Juliet Corbin; constructivist variant by Kathy Charmaz	Virginia Braun and Victoria Clarke
種類	Qualitative research method	Method
原典	Strauss, A., & Corbin, J. (1990). Basics of Qualitative Research: Grounded Theory Procedures and Techniques. Sage. ISBN: 978-0803932975	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
別名	focused coding, theoretical integration, GT selective coding, core category coding	TA, Reflexive Thematic Analysis
関連	6	3
概要	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.	Thematic Analysis (TA) is a qualitative research methodology for identifying, analyzing, and reporting patterns (themes) in qualitative data. Developed systematically by Virginia Braun and Victoria Clarke (2006), TA is flexible and accessible, applicable across diverse theoretical frameworks and data types, making it one of the most widely used qualitative methods in psychology, health research, and social sciences.