手法を比較

	比較グラウンデッド・セオリー	構成主義的グラウンデッド・セオリー
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1967 (base); comparative application formalised from the 1980s onward	2000s (Charmaz 2000–2006; classic GT roots 1967)
提唱者	Barney Glaser and Anselm Strauss (grounded theory base); comparative extension developed by multiple scholars	Kathy Charmaz (building on Glaser & Strauss, 1967)
種類	Qualitative comparative research design	Qualitative research method
原典	Glaser, B. G., & Strauss, A. L. (1967). The Discovery of Grounded Theory: Strategies for Qualitative Research. Aldine. ISBN: 978-0202302607	Charmaz, K. (2006). Constructing Grounded Theory: A Practical Guide Through Qualitative Analysis. Sage. ISBN: 978-0761973539
別名	cross-site grounded theory, multi-group grounded theory, comparative GT, grounded theory comparative analysis	CGT, constructivist GT, Charmaz grounded theory, interpretive grounded theory
関連	6	6
概要	Comparative grounded theory applies the systematic inductive logic of grounded theory across two or more distinct groups, settings, or time points. Rather than generating a theory grounded in a single context, it builds theory that explains variation and similarity across contexts, producing conceptually richer and more transferable explanatory frameworks than single-site grounded theory studies.	Constructivist Grounded Theory (CGT) is a qualitative methodology developed by Kathy Charmaz that systematically builds mid-range theory from empirical data through iterative coding, memo-writing, and theoretical sampling. Unlike the original objectivist version by Glaser and Strauss, CGT treats both data and theory as co-constructed between researcher and participants, acknowledging the researcher's interpretive perspective as an integral part of the analytic process rather than a source of bias to be eliminated.