So sánh phương pháp

	Nghiên cứu định lượng thăm dò dựa trên bảng điều tra	Khảo sát dọc
Lĩnh vực	Thiết kế nghiên cứu	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1940s–1960s (formalized in social sciences)	1940s (panel survey tradition); longitudinal designs codified mid-20th century
Người khởi xướng	Rooted in panel survey methodology developed broadly in social science (Lazarsfeld, 1940s; Kish, 1965)	Established tradition; formalized in social science by Paul Lazarsfeld and colleagues (1940s panel studies)
Loại	Quantitative observational research design	Quantitative / mixed-methods survey design
Công trình gốc	Lynn, P. (Ed.). (2009). Methodology of Longitudinal Surveys. John Wiley & Sons. ISBN: 978-0470018712	Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. ISBN: 978-0761922292
Tên gọi khác	exploratory panel study, panel survey design, longitudinal exploratory survey, repeated-measures exploratory design	panel survey, repeated-measures survey, longitudinal panel study, wave survey
Liên quan	3	3
Tóm tắt	Panel-based exploratory quantitative research tracks the same sample of participants across multiple measurement points to discover patterns, relationships, and change processes that a single snapshot cannot reveal. Because the research goal is exploratory — uncovering structure rather than testing a predetermined hypothesis — the design is especially valuable in emerging topic areas where theory is underdeveloped and the relevant variables are not yet well understood.	A longitudinal survey collects structured questionnaire data from the same individuals or units at two or more distinct points in time. By tracking the same respondents across waves, researchers can distinguish genuine change from stable individual differences, establish temporal ordering between variables, and model trajectories of attitudes, behaviors, or outcomes in ways that a single cross-sectional snapshot cannot support.