So sánh phương pháp

	Nghiên cứu Định lượng Khám phá Phân cấp	Phân tích nhân tố khám phá (EFA)
Lĩnh vực	Thiết kế nghiên cứu	Thống kê
Họ	Process / pipeline	Latent structure
Năm ra đời	mid-20th century onward	—
Người khởi xướng	Developed from survey research traditions (Kish, 1965; Babbie, 1990s)	—
Loại	Quantitative observational and survey design	Latent variable / dimension reduction
Công trình gốc	Creswell, J. W. (2014). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (4th ed.). Sage Publications. ISBN: 978-1452226101	Fabrigar, L. R., Wegener, D. T., MacCallum, R. C. & Strahan, E. J. (1999). Evaluating the use of exploratory factor analysis in psychological research. Psychological Methods, 4(3), 272–299.
Tên gọi khác	stratified exploratory survey design, hierarchical survey research, multilevel exploratory quantitative design, hierarchical descriptive-quantitative design	common factor analysis, açımlayıcı faktör analizi, factor analysis
Liên quan	2	4
Tóm tắt	Hierarchical exploratory quantitative research is a survey and observational design that structures both sampling and analysis across nested population levels — such as students within classrooms within schools — to explore patterns, distributions, and relationships in numerical data without a pre-specified directional hypothesis. It is oriented toward discovery and description rather than confirmation, making it appropriate early in a research programme when the phenomenon is not yet well-mapped.	Exploratory factor analysis reduces a large set of observed variables into a smaller number of latent common factors. It is widely used in scale development and psychometrics to uncover the dimensional structure that underlies a set of correlated items, without specifying that structure in advance.