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	Longitudinal Classic Grounded Theory	Longitudinell grundad teori
Ämnesområde	Kvalitativa metoder	Kvalitativa metoder
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1967 (classic GT); longitudinal application developed from 1980s onward	1990s–2000s (as a recognized variant of grounded theory)
Upphovsperson	Barney G. Glaser and Anselm L. Strauss (classic GT); longitudinal extension by later methodologists	Kathy Charmaz and longitudinal qualitative researchers (building on Glaser & Strauss)
Typ	Qualitative longitudinal research design	Qualitative longitudinal research design
Ursprungskälla	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: 978-0761973522
Alias	Longitudinal CGT, Glaserian longitudinal grounded theory, classic GT longitudinal design, longitudinal substantive theory building	LGT, longitudinal GT, temporal grounded theory, grounded theory longitudinal design
Närliggande	6	5
Sammanfattning	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 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.