手法を比較

	縦断的古典的グラウンデッド・セオリー	時系列テーマ分析
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1967 (classic GT); longitudinal application developed from 1980s onward	2000s–2010s (formalized alongside longitudinal qualitative research methods)
提唱者	Barney G. Glaser and Anselm L. Strauss (classic GT); longitudinal extension by later methodologists	Built on Braun & Clarke (2006) thematic analysis; longitudinal adaptation developed across qualitative health and social science research communities
種類	Qualitative longitudinal research design	Qualitative analysis approach
原典	Glaser, B. G., & Strauss, A. L. (1967). The Discovery of Grounded Theory: Strategies for Qualitative Research. Aldine. ISBN: 978-0202302607	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
別名	Longitudinal CGT, Glaserian longitudinal grounded theory, classic GT longitudinal design, longitudinal substantive theory building	LTA, longitudinal TA, repeated thematic analysis, temporal thematic analysis
関連	6	4
概要	Longitudinal Classic Grounded Theory applies Glaser and Strauss's original discovery-oriented grounded theory method across two or more data collection waves separated by time. The approach tracks how social processes, behaviors, and conceptual categories evolve, allowing the researcher to build a substantive theory that captures change and continuity rather than a single static snapshot of a phenomenon.	Longitudinal Thematic Analysis (LTA) extends standard thematic analysis to data collected at multiple time points from the same participants or contexts. Rather than producing a single cross-sectional account, LTA maps how themes emerge, persist, transform, or disappear over time, enabling researchers to understand change, continuity, and process in qualitative terms. It is widely used in health, education, and social science research where lived experience unfolds over months or years.