手法を比較

	専門家インタビュー	Grounded Theory
分野	質的手法	質的研究
系統	Process / pipeline	Process / pipeline
提唱年	1970s–1990s (methodologically systematized)	1967
提唱者	Meuser & Nagel (methodological codification, 1991); roots in elite interview tradition (Dexter, 1970)	Barney Glaser and Anselm Strauss
種類	Qualitative research method	Method
原典	Bogner, A., Littig, B., & Menz, W. (Eds.). (2009). Interviewing Experts. Palgrave Macmillan.	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
別名	elite interview, key informant interview, specialist interview	GT, Grounded Theory Approach
関連	6	3
概要	The expert interview is a qualitative method in which researchers conduct in-depth, semi-structured conversations with individuals who hold specialised knowledge, experience, or decision-making authority in a defined field. Unlike general population interviews that target subjective lived experience, expert interviews treat respondents as proxies for a broader institutional or professional knowledge domain. The method is widely used in policy research, organisational studies, science and technology studies, and applied social sciences to map tacit professional knowledge, reconstruct decision processes, and triangulate documentary sources.	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.