So sánh phương pháp

	Phân tích nội dung định lượng phân cấp	Phân tích nội dung định lượng
Lĩnh vực	Thiết kế nghiên cứu	Thiết kế nghiên cứu
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1980s–1990s (formalized in Krippendorff 1980; elaborated through subsequent editions)	1950s (Berelson 1952; Krippendorff 1980/2004)
Người khởi xướng	Klaus Krippendorff (hierarchical category systems formalized in content analysis methodology)	Bernard Berelson; later systematised by Klaus Krippendorff
Loại	Quantitative research design	Quantitative observational research method
Công trình gốc	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395678	Krippendorff, K. (2004). Content Analysis: An Introduction to Its Methodology (2nd ed.). Sage. ISBN: 978-0761915454
Tên gọi khác	hierarchical coding content analysis, nested category content analysis, tree-structured content analysis, HQCA	QCA, manifest content analysis, systematic content analysis, frequency-based content analysis
Liên quan	2	4
Tóm tắt	Hierarchical quantitative content analysis is a systematic method for coding and counting text or media content using nested, tree-structured category schemes. Rather than a flat list of mutually exclusive codes, categories are organized into parent-child levels — broad themes subdivide into specific sub-themes — enabling researchers to aggregate or disaggregate frequencies at any level of the hierarchy and to produce richly structured numerical summaries of large corpora.	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.