เปรียบเทียบวิธี

	การวิเคราะห์แก่นสาระเชิงเวลา (Longitudinal Thematic Analysis	การวิเคราะห์แก่นสาระ
สาขาวิชา	เชิงคุณภาพ	การวิจัยเชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	2000s–2010s (formalized alongside longitudinal qualitative research methods)	2006
ผู้ริเริ่ม	Built on Braun & Clarke (2006) thematic analysis; longitudinal adaptation developed across qualitative health and social science research communities	Virginia Braun and Victoria Clarke
ประเภท	Qualitative analysis approach	Method
แหล่งต้นตำรับ	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
ชื่อเรียกอื่น	LTA, longitudinal TA, repeated thematic analysis, temporal thematic analysis	TA, Reflexive Thematic Analysis
ที่เกี่ยวข้อง	4	3
สรุป	Longitudinal Thematic Analysis (LTA) extends standard thematic analysis to data collected at multiple time points from the same participants or contexts. Rather than producing a single cross-sectional account, LTA maps how themes emerge, persist, transform, or disappear over time, enabling researchers to understand change, continuity, and process in qualitative terms. It is widely used in health, education, and social science research where lived experience unfolds over months or years.	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.