手法を比較

	インビボ・コーディング	コンテンツ分析
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1967 (grounded theory origins); widely codified as a distinct method from the 1990s onward	Systematised through Krippendorff's methodology work; 4th edition 2018
提唱者	Barney G. Glaser and Anselm L. Strauss (grounded theory tradition); systematised and named by Johnny Saldaña	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research
種類	Qualitative research method	Qualitative / mixed-method research technique
原典	Saldaña, J. (2021). The Coding Manual for Qualitative Researchers (4th ed.). Sage. ISBN: 978-1529731743	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661
別名	verbatim coding, literal coding, first-cycle in vivo coding, indigenous coding	İçerik Analizi, systematic content coding, quantitative content analysis
関連	6	5
概要	In vivo coding is a qualitative first-cycle coding strategy in which the researcher uses the participants' own words or short phrases verbatim as code labels, rather than imposing researcher-generated or theoretical language. The technique preserves the voice, meaning, and conceptual priorities of participants, making it especially valuable in grounded theory, phenomenology, and any study where honouring the emic (insider) perspective is central to analytic integrity.	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.