So sánh phương pháp

	Phân tích chủ đề phản tư theo chiều dọc	Phân tích nội dung theo chiều dọc
Lĩnh vực	Định tính	Định tính
Họ	Process / pipeline	Process / pipeline
Năm ra đời	2006 (RTA seminal); longitudinal application developed through 2010s	Mid-20th century onward; systematized alongside content analysis (Berelson, 1952; Krippendorff, 1980)
Người khởi xướng	Virginia Braun & Victoria Clarke (reflexive thematic analysis); longitudinal design adapted from qualitative longitudinal research traditions (Saldaña, 2003)	Developed within the content analysis tradition; longitudinal extensions widely applied since the mid-20th century in communication and political science research
Loại	Qualitative analytic method applied longitudinally	Qualitative and mixed-methods research design
Công trình gốc	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661
Tên gọi khác	longitudinal RTA, repeated-wave thematic analysis, longitudinal qualitative thematic analysis, L-RTA	LCA, repeated content analysis, diachronic content analysis, trend content analysis
Liên quan	5	5
Tóm tắt	Longitudinal Reflexive Thematic Analysis (L-RTA) applies Braun and Clarke's reflexive thematic analysis framework to qualitative data collected from the same participants (or context) at two or more time points. Rather than producing a single static account, it tracks how meanings, experiences, and themes evolve, persist, or transform over time, foregrounding the researcher's active reflexive engagement at every stage of the iterative process.	Longitudinal Content Analysis (LCA) applies systematic content analysis to documents, media, or texts sampled at two or more time points in order to detect how themes, frames, language, or discourse patterns change or persist over time. Drawing on the established logic of content analysis, it adds a temporal dimension that allows researchers to chart trends, trace the evolution of representations, and test hypotheses about historical or social change. It is widely used in communication research, political science, media studies, and the health sciences.