เปรียบเทียบวิธี

	การรวบรวมเอกสาร	การวิเคราะห์แก่นสาระ
สาขาวิชา	ระเบียบวิธีสำรวจ	การวิจัยเชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	19th–20th century historical methods; contemporary social-science codification c. 2000s	2006
ผู้ริเริ่ม	Rooted in historical and social science traditions; systematized by Lindsay Prior and Glenn Bowen	Virginia Braun and Victoria Clarke
ประเภท	Qualitative / mixed data-collection technique	Method
แหล่งต้นตำรับ	Bowen, G. A. (2009). Document analysis as a qualitative research method. Qualitative Research Journal, 9(2), 27–40.	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
ชื่อเรียกอื่น	document analysis, documentary method, document review, secondary document analysis	TA, Reflexive Thematic Analysis
ที่เกี่ยวข้อง	3	3
สรุป	Document collection is a systematic data-collection technique in which the researcher gathers and reviews existing written, visual, or digital records — such as reports, meeting minutes, policies, letters, photographs, or institutional records — as primary or supplementary evidence. It is widely used in qualitative, historical, and mixed-methods research and can stand alone or complement interviews and observation.	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.