手法を比較

	Longitudinal Content Analysis	ナラティブ分析
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	Mid-20th century onward; systematized alongside content analysis (Berelson, 1952; Krippendorff, 1980)	1967 (foundational); 2008 (canonical handbook)
提唱者	Developed within the content analysis tradition; longitudinal extensions widely applied since the mid-20th century in communication and political science research	Catherine Kohler Riessman (seminal synthesis, 2008); roots in Labov & Waletzky (1967)
種類	Qualitative and mixed-methods research design	Qualitative interpretive method
原典	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661	Riessman, C.K. (2008). Narrative Methods for the Human Sciences. Sage.
別名	LCA, repeated content analysis, diachronic content analysis, trend content analysis	narrative inquiry, life history analysis, biographical research, Anlatı Analizi (Narrative Analysis)
関連	5	6
概要	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.	Narrative analysis is a qualitative research method, synthesised canonically by Catherine Kohler Riessman (2008), that examines how individuals storise their lived experiences and construct meaning through the telling. Drawing on life history, biographical, and narrative inquiry traditions, it treats the story itself — not just its content — as the unit of analysis, attending to temporal sequence, plot structure, and the social context in which a narrative is produced.