So sánh phương pháp

	Lấy mẫu hạn ngạch có trọng số	Chọn mẫu hạn ngạch
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	Mid-to-late 20th century	1930s
Người khởi xướng	Derived from quota sampling (mid-20th century market research) combined with survey weighting theory (Kalton, 1983)	Developed in market research and opinion polling, notably applied by George Gallup in the 1930s
Loại	Non-probability sampling with post-collection weight adjustment	Non-probability sampling design
Công trình gốc	Kalton, G. (1983). Introduction to Survey Sampling. Sage Publications. ISBN: 978-0803921290	Moser, C. A., & Kalton, G. (1972). Survey Methods in Social Investigation (2nd ed.). Heinemann. ISBN: 978-0435827496
Tên gọi khác	quota sampling with weighting, weighted quota survey, post-weighted quota sampling, quota sample weighting	quota-controlled sampling, quota selection, non-probability quota sampling
Liên quan	5	5
Tóm tắt	Weighted quota sampling combines quota sampling — recruiting a set number of respondents matching pre-specified demographic cells — with post-collection statistical weighting that adjusts each respondent's contribution to match known population proportions. The result is a non-probability design with a bias-correction mechanism, widely used in market research, political polling, and applied social surveys when probability sampling is impractical but representativeness remains a goal.	Quota sampling is a non-probability technique in which the researcher pre-specifies how many units to recruit from each subgroup (quota cell) defined by one or more control variables such as age, gender, or occupation. Interviewers or data collectors then use their own judgment to find and enroll participants until each cell is filled. The method guarantees the sample mirrors the population on the control variables but does not provide the randomness needed for classical statistical inference.