เปรียบเทียบวิธี

	ปรากฏการณ์วิทยา	การวิเคราะห์วาทกรรม	ทฤษฎีฐานราก
สาขาวิชา	เชิงคุณภาพ	การวิจัยเชิงคุณภาพ	การวิจัยเชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline	Process / pipeline
ปีกำเนิด	Early 20th century (Husserl ~1900–1913; Heidegger ~1927)	1989 (Fairclough); 1987 (Potter & Wetherell)	1967
ผู้ริเริ่ม	Edmund Husserl (transcendental); Martin Heidegger (hermeneutic)	Norman Fairclough; Jonathan Potter and Margaret Wetherell	Barney Glaser and Anselm Strauss
ประเภท	Qualitative research approach	Method	Method
แหล่งต้นตำรับ	Moustakas, C. (1994). Phenomenological Research Methods. Sage. ISBN: 978-0803957466	Fairclough, N. (1989). Language and power. Longman.	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
ชื่อเรียกอื่น	Fenomenoloji, phenomenological inquiry, phenomenological analysis	DA, Critical Discourse Analysis, Discursive Analysis	GT, Grounded Theory Approach
ที่เกี่ยวข้อง	6	2	3
สรุป	Phenomenology is a qualitative research approach that investigates how participants live through and make sense of a specific experience. Rooted in the philosophy of Edmund Husserl and extended by Martin Heidegger, it aims to reveal the essential structures of lived experience rather than to measure or predict outcomes. The two most widely applied variants are Husserl's transcendental phenomenology, which seeks universal essences, and Heidegger's hermeneutic phenomenology, which emphasises interpretation within context.	Discourse analysis is a qualitative research methodology that examines how language, communication, and power shape meaning, identity, and social reality. Developed across linguistics, sociology, and psychology (particularly by Norman Fairclough and Jonathan Potter), discourse analysis goes beyond content to analyze language use as a social practice that constitutes and reflects power relations, ideologies, and social structures.	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.