方法对比

	Manifest Content Analysis	定量内容分析
领域	Communication	研究设计
方法族	Process / pipeline	Process / pipeline
起源年份	1952	1950s (Berelson 1952; Krippendorff 1980/2004)
提出者	Bernard Berelson; codified by Klaus Krippendorff	Bernard Berelson; later systematised by Klaus Krippendorff
类型	Systematic quantitative coding of explicit message content	Quantitative observational research method
开创性文献	Krippendorff, K. (2004). Content Analysis: An Introduction to Its Methodology (2nd ed.). Thousand Oaks, CA: Sage. ISBN: 9780761915454	Krippendorff, K. (2004). Content Analysis: An Introduction to Its Methodology (2nd ed.). Sage. ISBN: 978-0761915454
别名	Quantitative manifest coding, Surface-content analysis, Manifest-level content analysis, Berelson content analysis	QCA, manifest content analysis, systematic content analysis, frequency-based content analysis
相关	5	4
摘要	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.	Quantitative content analysis is a systematic, replicable method for converting the manifest content of text, images, or other recorded communication into numerical data. By applying a pre-specified codebook to a defined corpus and counting or scaling the resulting categories, researchers obtain frequency distributions, proportions, and relationships that can be subjected to standard statistical tests. It is the dominant method for large-scale, objective analysis of media, documents, social media posts, policy texts, and similar materials.