手法を比較

	複数の事例に基づく構成主義的グラウンデッド・セオリー	Grounded Theory
分野	質的手法	質的研究
系統	Process / pipeline	Process / pipeline
提唱年	2006 (Charmaz's CGT); multi-case applications prominent from 2010s onward	1967
提唱者	Kathy Charmaz (constructivist grounded theory); multi-case extension developed through methodological elaboration by Charmaz and subsequent scholars	Barney Glaser and Anselm Strauss
種類	Qualitative research design and analytic approach	Method
原典	Charmaz, K. (2006). Constructing Grounded Theory: A Practical Guide Through Qualitative Analysis. Sage. ISBN: 978-0761973522	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
別名	multi-case CGT, constructivist grounded theory with multiple cases, multiple-site constructivist GT, CGT multiple case design	GT, Grounded Theory Approach
関連	6	3
概要	Multiple case-based constructivist grounded theory (CGT) combines Kathy Charmaz's constructivist grounded theory framework with a deliberate multi-case design. The researcher collects and analyzes data from two or more purposively selected cases simultaneously, applying iterative coding, constant comparison, and theoretical sampling across cases to build a grounded theory that accounts for both within-case depth and cross-case variation. The resulting theory is understood as jointly constructed by researcher and participants rather than objectively discovered.	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.