手法を比較

	時間的グラウンデッド・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	1990s–2000s (as a recognized variant of grounded theory)	2000s–2010s (formalized alongside longitudinal qualitative research methods)
提唱者	Kathy Charmaz and longitudinal qualitative researchers (building on Glaser & Strauss)	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	Charmaz, K. (2006). Constructing Grounded Theory: A Practical Guide through Qualitative Analysis. Sage. ISBN: 978-0761973522	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
別名	LGT, longitudinal GT, temporal grounded theory, grounded theory longitudinal design	LTA, longitudinal TA, repeated thematic analysis, temporal thematic analysis
関連	5	4
概要	Longitudinal grounded theory is a qualitative research design that applies grounded theory's inductive, iterative logic to data collected from the same participants or settings across multiple time points. It is used to build substantive theory that accounts not only for social processes but also for how those processes unfold, shift, and are renegotiated over time. The approach is particularly suited to studying change, trajectory, and temporal experience in social and health research.	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.