手法を比較

	Cultivation Analysis	Manifest Content Analysis
分野	Communication	Communication
系統	Process / pipeline	Process / pipeline
提唱年	1976	1952
提唱者	George Gerbner & Larry Gross	Bernard Berelson; codified by Klaus Krippendorff
種類	Two-part method linking media message systems to audience worldviews	Systematic quantitative coding of explicit message content
原典	Gerbner, G., & Gross, L. (1976). Living with television: The violence profile. Journal of Communication, 26(2), 173–199.	Krippendorff, K. (2004). Content Analysis: An Introduction to Its Methodology (2nd ed.). Thousand Oaks, CA: Sage. ISBN: 9780761915454
別名	Cultivation theory analysis, Cultivation research, Mean world / message-system analysis, Kültivasyon Analizi	Quantitative manifest coding, Surface-content analysis, Manifest-level content analysis, Berelson content analysis
関連	4	5
概要	Cultivation analysis is the research method underlying cultivation theory, which holds that long-term, cumulative exposure to television gradually shapes viewers' conceptions of social reality. Developed by George Gerbner and Larry Gross in the 1970s as part of the Cultural Indicators project, it combines a systematic content analysis of recurring media messages with survey comparisons of heavy versus light viewers to estimate how much television 'cultivates' a shared, often distorted, view of the world.	Manifest content analysis is a quantitative research technique that systematically counts the explicit, surface-level features of communication messages — words, sources, themes, images, or actors that are directly visible in the text or media artifact — according to a predefined coding scheme. Rooted in Bernard Berelson's classic definition of content analysis as the 'objective, systematic, and quantitative description of the manifest content of communication,' it is one of the foundational empirical methods of mass communication and media research.