เปรียบเทียบวิธี

	การทฤษฎีฐานรากแบบคลาสสิกที่อิงภาคสนาม	ทฤษฎีฐานรากภาคสนาม
สาขาวิชา	เชิงคุณภาพ	เชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1967 (Glaser & Strauss); field-based application codified from late 1970s onward	1967 (original GT); field-based variant developed through 1980s–2000s
ผู้ริเริ่ม	Barney G. Glaser (classic GT); field-based variant draws on naturalistic inquiry traditions	Kathy Charmaz (constructivist extension); Barney Glaser & Anselm Strauss (original grounded theory)
ประเภท	Qualitative theory-generating design	Qualitative research design and analysis approach
แหล่งต้นตำรับ	Glaser, B. G. (1978). Theoretical Sensitivity: Advances in the Methodology of Grounded Theory. Sociology Press.	Charmaz, K. (2006). Constructing Grounded Theory: A Practical Guide through Qualitative Analysis. Sage. ISBN: 978-0761973539
ชื่อเรียกอื่น	Glaserian grounded theory in naturalistic settings, classic GT field study, field-based GT, naturalistic classic grounded theory	constructivist grounded theory, ethnographic grounded theory, situational grounded theory, field grounded theory
ที่เกี่ยวข้อง	6	6
สรุป	Field-based classic grounded theory applies Barney Glaser's original (Glaserian) grounded theory method within naturalistic, in-situ settings — combining sustained field immersion with the classic GT emphasis on emergence, theoretical sensitivity, and the constant comparative method. The researcher enters the social scene without a predetermined framework, collects data through observation and naturalistic interviews, and allows a substantive theory to surface inductively from the field rather than imposing conceptual structure in advance.	Field-based grounded theory integrates sustained fieldwork — participant observation, field notes, and naturalistic data collection — with the iterative coding and theoretical sampling procedures of classic grounded theory. Where standard grounded theory typically relies on interview transcripts, the field-based variant anchors theory generation in direct, prolonged observation of naturally occurring social processes in context. The result is a substantive theory that is grounded in both what people say and what they actually do in their everyday settings.