So sánh phương pháp

	Lý thuyết nền tảng cổ điển theo chiều dọc	Lý thuyết nền tảng cổ điển
Lĩnh vực	Định tính	Định tính
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1967 (classic GT); longitudinal application developed from 1980s onward	1967
Người khởi xướng	Barney G. Glaser and Anselm L. Strauss (classic GT); longitudinal extension by later methodologists	Barney G. Glaser and Anselm L. Strauss
Loại	Qualitative longitudinal research design	Qualitative research method
Công trình gốc	Glaser, B. G., & Strauss, A. L. (1967). The Discovery of Grounded Theory: Strategies for Qualitative Research. Aldine. ISBN: 978-0202302607	Glaser, B. G., & Strauss, A. L. (1967). The Discovery of Grounded Theory: Strategies for Qualitative Research. Aldine.
Tên gọi khác	Longitudinal CGT, Glaserian longitudinal grounded theory, classic GT longitudinal design, longitudinal substantive theory building	Glaserian GT, CGT, original grounded theory, classic GT
Liên quan	6	6
Tóm tắt	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.	Classic Grounded Theory (CGT) is a systematic qualitative methodology for generating substantive theory from empirical data. Developed by Barney Glaser and Anselm Strauss in 1967, it uses iterative cycles of data collection, constant comparison, and memo writing to produce a core category and surrounding conceptual framework that explains a social or psychological process. Unlike its later variants, Glaserian CGT insists on emergence — theory must arise from data without forcing preconceived frameworks.