เปรียบเทียบวิธี

	Multiple case-based Straussian grounded theory	ทฤษฎีฐานรากเชิงระยะยาว
สาขาวิชา	เชิงคุณภาพ	เชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1990s (synthesis of Strauss & Corbin 1990 and multi-case design conventions)	1990s–2000s (as a recognized variant of grounded theory)
ผู้ริเริ่ม	Anselm Strauss & Juliet Corbin (Straussian GT); multiple-case design formalized by Robert K. Yin and Kathleen Eisenhardt	Kathy Charmaz and longitudinal qualitative researchers (building on Glaser & Strauss)
ประเภท	Qualitative research design and analytic strategy	Qualitative longitudinal research design
แหล่งต้นตำรับ	Strauss, A., & Corbin, J. (1990). Basics of Qualitative Research: Grounded Theory Procedures and Techniques. Sage. ISBN: 978-0803932500	Charmaz, K. (2006). Constructing Grounded Theory: A Practical Guide through Qualitative Analysis. Sage. ISBN: 978-0761973522
ชื่อเรียกอื่น	multi-case Straussian GT, Strauss-Corbin grounded theory across cases, multiple-site Straussian grounded theory, multi-case GT (Strauss & Corbin)	LGT, longitudinal GT, temporal grounded theory, grounded theory longitudinal design
ที่เกี่ยวข้อง	6	5
สรุป	Multiple case-based Straussian grounded theory combines Strauss and Corbin's systematic coding procedures — open, axial, and selective coding — with a multiple case design in which the same grounded theory analysis is conducted across two or more purposively selected cases. The approach aims to generate a mid-range theory grounded in rich, cross-case qualitative data while capitalizing on the comparative leverage offered by multiple sites or units, ultimately producing a theory with broader scope and stronger transferability than a single-case grounded theory study.	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.