เปรียบเทียบวิธี

	การสำรวจเชิงสัมพันธ์แบบลำดับชั้น	การวิจัยภาคตัดขวางเชิงลำดับชั้น
สาขาวิชา	การออกแบบการวิจัย	การออกแบบการวิจัย
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1980s–2002 (modern HLM-based survey tradition)	1980s–1990s (formalized with HLM software and methodology)
ผู้ริเริ่ม	Raudenbush & Bryk (multilevel framework); Hox (multilevel survey analysis)	Raudenbush & Bryk; Goldstein; Snijders & Bosker (multilevel modeling tradition)
ประเภท	Quantitative survey design with multilevel relational analysis	Quantitative observational design
แหล่งต้นตำรับ	Raudenbush, S. W., & Bryk, A. S. (2002). Hierarchical Linear Models: Applications and Data Analysis Methods (2nd ed.). Sage. ISBN: 978-0761919049	Snijders, T. A. B., & Bosker, R. J. (2012). Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling (2nd ed.). Sage. ISBN: 978-1849202015
ชื่อเรียกอื่น	nested relational survey, multilevel relational survey, HLM-based relational survey, hierarchical correlational survey	multilevel cross-sectional design, nested cross-sectional study, clustered cross-sectional research, HCS design
ที่เกี่ยวข้อง	4	2
สรุป	A hierarchical relational survey combines the correlational goals of relational survey research with a multilevel data structure in which respondents are nested within higher-level units such as classrooms, schools, hospitals, or organizations. The design acknowledges that observations within the same group are not independent, and uses hierarchical linear modeling (HLM) or equivalent multilevel techniques to examine relationships among variables both within and between levels simultaneously.	Hierarchical cross-sectional research is a quantitative observational design that collects data from individuals nested within higher-level units — such as students within schools, patients within hospitals, or employees within organizations — at a single point in time. By accounting for the non-independence of clustered observations through multilevel modeling, it enables researchers to simultaneously examine individual-level and group-level predictors of an outcome without violating the independence assumption of ordinary regression.