手法を比較

	歴史的アーカイブ調査	コンテンツ分析
分野	フィールド調査法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	19th century (formalized ~1820s–1880s)	Systematised through Krippendorff's methodology work; 4th edition 2018
提唱者	Historians and archivists; systematised through the professionalization of historical scholarship in the 19th century	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research
種類	Qualitative primary-source research	Qualitative / mixed-method research technique
原典	Hill, M. R. (1993). Archival Strategies and Techniques. Sage Publications. ISBN: 978-0803951853	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661
別名	archival research, historical document analysis, archival history, primary source research	İçerik Analizi, systematic content coding, quantitative content analysis
関連	6	5
概要	Historical archival research is a systematic method of investigating the past through the critical examination of primary source documents preserved in archives, libraries, and institutional collections. Researchers locate, access, authenticate, and interpret original records — such as government documents, correspondence, diaries, maps, and institutional files — to reconstruct events, trace processes, and build evidence-based historical arguments. It is foundational to historiography and widely applied across humanities and social science disciplines.	Content analysis is a systematic research technique for reducing text, visual, or media material into coded categories so that patterns can be counted, compared, and interpreted. Formalised by Klaus Krippendorff in his widely cited methodology textbook (latest edition 2018), the method sits at the boundary of qualitative and quantitative inquiry: it imposes structured, replicable coding on inherently meaning-laden material.