เปรียบเทียบวิธี

	การทฤษฎีฐานรากแบบคลาสสิกตามแนวแกนเวลา	Longitudinal Qualitative Content Analysis
สาขาวิชา	เชิงคุณภาพ	เชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1967 (classic GT); longitudinal application developed from 1980s onward	2000s–2010s
ผู้ริเริ่ม	Barney G. Glaser and Anselm L. Strauss (classic GT); longitudinal extension by later methodologists	Philipp Mayring (foundational QCA); longitudinal extension developed across qualitative health and social research traditions
ประเภท	Qualitative longitudinal research design	Qualitative analytical method
แหล่งต้นตำรับ	Glaser, B. G., & Strauss, A. L. (1967). The Discovery of Grounded Theory: Strategies for Qualitative Research. Aldine. ISBN: 978-0202302607	Mayring, P. (2000). Qualitative content analysis. Forum: Qualitative Social Research, 1(2), Art. 20.
ชื่อเรียกอื่น	Longitudinal CGT, Glaserian longitudinal grounded theory, classic GT longitudinal design, longitudinal substantive theory building	LQCA, longitudinal QCA, repeated qualitative content analysis, panel qualitative content analysis
ที่เกี่ยวข้อง	6	3
สรุป	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 qualitative content analysis (LQCA) applies systematic content analysis to text data gathered from the same participants, settings, or documents at two or more points in time. The method preserves the interpretive rigour of qualitative content analysis while adding an explicit temporal dimension, enabling researchers to track how meanings, experiences, categories, or discourse shift, deepen, or stabilise across time rather than producing a single-point-in-time description.