เปรียบเทียบวิธี

	ทฤษฎีฐานราก	การวิจัยเชิงปรากฏการณ์วิทยา	การวิเคราะห์แก่นสาระ
สาขาวิชา	การวิจัยเชิงคุณภาพ	การวิจัยเชิงคุณภาพ	การวิจัยเชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline	Process / pipeline
ปีกำเนิด	1967	1900s (Husserl); 1920s (Heidegger)	2006
ผู้ริเริ่ม	Barney Glaser and Anselm Strauss	Edmund Husserl (descriptive) and Martin Heidegger (interpretive)	Virginia Braun and Victoria Clarke
ประเภท	Method	Method	Method
แหล่งต้นตำรับ	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.	Husserl, E. (1931). Cartesian meditations: An introduction to phenomenology (D. Cairns, Trans.). Martinus Nijhoff.	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
ชื่อเรียกอื่น	GT, Grounded Theory Approach	Phenomenology, Descriptive Phenomenology, Interpretive Phenomenology	TA, Reflexive Thematic Analysis
ที่เกี่ยวข้อง	3	3	3
สรุป	Grounded Theory (GT) is a systematic qualitative research methodology in which theory emerges directly from data through iterative analysis, rather than being imposed before data collection. Developed by Barney Glaser and Anselm Strauss in 1967, GT prioritizes generating explanatory frameworks grounded in evidence.	Phenomenological research is a qualitative methodology focused on understanding the lived experience of a phenomenon as it is experienced by individuals. Rooted in the philosophical traditions of Edmund Husserl (descriptive phenomenology) and Martin Heidegger (interpretive phenomenology), this approach seeks to uncover the essential structures and meanings of human experience.	Thematic Analysis (TA) is a qualitative research methodology for identifying, analyzing, and reporting patterns (themes) in qualitative data. Developed systematically by Virginia Braun and Victoria Clarke (2006), TA is flexible and accessible, applicable across diverse theoretical frameworks and data types, making it one of the most widely used qualitative methods in psychology, health research, and social sciences.