手法を比較

	構成主義的グラウンデッド・セオリー	ケーススタディリサーチ（Case Study Research）	エスノグラフィー	ナラティブ分析
分野	質的手法	質的手法	質的手法	質的手法
系統	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	2000s (Charmaz 2000–2006; classic GT roots 1967)	1984 (seminal codification)	c. 1922 (Malinowski's Argonauts of the Western Pacific)	1967 (foundational); 2008 (canonical handbook)
提唱者	Kathy Charmaz (building on Glaser & Strauss, 1967)	Robert K. Yin (systematised in Case Study Research, 1984)	Bronisław Malinowski (modern ethnography); rooted in 19th-century anthropology	Catherine Kohler Riessman (seminal synthesis, 2008); roots in Labov & Waletzky (1967)
種類	Qualitative research method	Qualitative research design	Qualitative fieldwork tradition	Qualitative interpretive method
原典	Charmaz, K. (2006). Constructing Grounded Theory: A Practical Guide Through Qualitative Analysis. Sage. ISBN: 978-0761973539	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Hammersley, M. & Atkinson, P. (2019). Ethnography: Principles in Practice (4th ed.). Routledge. ISBN: 978-1138504462	Riessman, C.K. (2008). Narrative Methods for the Human Sciences. Sage.
別名	CGT, constructivist GT, Charmaz grounded theory, interpretive grounded theory	Vaka Çalışması (Case Study), case study design, case study methodology	Etnografi, participant observation, fieldwork, ethnographic research	narrative inquiry, life history analysis, biographical research, Anlatı Analizi (Narrative Analysis)
関連	6	5	5	6
概要	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.	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.	Ethnography is a qualitative research tradition in which a researcher immerses themselves in a social group or community over an extended period — typically three to six months or longer — to study its culture, values, and behaviours in their natural setting. Originating in social and cultural anthropology, and consolidated as a rigorous method by Bronisław Malinowski in the early twentieth century, ethnography produces rich, contextualised accounts of how people live, work, and make meaning together.	Narrative analysis is a qualitative research method, synthesised canonically by Catherine Kohler Riessman (2008), that examines how individuals storise their lived experiences and construct meaning through the telling. Drawing on life history, biographical, and narrative inquiry traditions, it treats the story itself — not just its content — as the unit of analysis, attending to temporal sequence, plot structure, and the social context in which a narrative is produced.