So sánh phương pháp

	Khảo sát qua điện thoại	Khảo sát trực tuyến
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1970s (widespread from mid-1970s; Groves & Kahn 1979 seminal text)	Mid-1990s (widespread scholarly adoption ~1995–2000)
Người khởi xướng	Groves & Kahn (foundational comparative study); CATI systems developed by Charles Cannell and colleagues at University of Michigan	Mick P. Couper, Don A. Dillman (early systematic frameworks)
Loại	Quantitative / mixed-mode data collection	Quantitative / mixed-methods data collection technique
Công trình gốc	Groves, R. M., & Kahn, R. L. (1979). Surveys by telephone: A national comparison with personal interviews. Academic Press.	Couper, M. P. (2000). Web surveys: A review of issues and approaches. Public Opinion Quarterly, 64(4), 464–494.
Tên gọi khác	CATI survey, computer-assisted telephone interview, telephone survey, phone survey	web survey, internet survey, e-survey, computer-assisted web interviewing
Liên quan	5	6
Tóm tắt	A telephone-assisted survey is a structured data-collection method in which a trained interviewer administers a standardised questionnaire to respondents over the telephone, often supported by Computer-Assisted Telephone Interviewing (CATI) software. It combines the efficiency of remote administration with the response-quality advantages of live interviewer guidance, making it widely used in social, public-health, market-research, and political polling contexts.	An online survey is a structured data collection instrument hosted on a web platform and completed by respondents via internet-connected devices. It enables large-scale, geographically dispersed data gathering at low cost and with rapid turnaround. Respondents self-administer the questionnaire at their convenience, which reduces interviewer bias and permits automatic data capture. Online surveys are the dominant mode of survey research in social, behavioural, health, and market research today.