So sánh phương pháp

	Phân tích tương quan (Conjoint Analysis)	Phương pháp Bề mặt Đáp ứng (RSM)
Lĩnh vực	Thiết kế thí nghiệm	Thiết kế thí nghiệm
Họ	Hypothesis test	Hypothesis test
Năm ra đời	1978	1951
Người khởi xướng	Paul E. Green & V. Srinivasan	George E. P. Box & K. B. Wilson
Loại	Decomposition-based utility estimation	Second-order polynomial response surface model
Công trình gốc	Green, P.E. & Srinivasan, V. (1978). Conjoint analysis in consumer research: Issues and outlook. Journal of Consumer Research, 5(2), 103–123.	Box, G. E. P. & Wilson, K. B. (1951). On the experimental attainment of optimum conditions. Journal of the Royal Statistical Society, Series B, 13(1), 1–45.
Tên gọi khác	CBC conjoint, choice-based conjoint, adaptive conjoint analysis, full-profile conjoint	RSM, Central Composite Design, Box-Behnken Design, CCD
Liên quan	6	7
Tóm tắt	Conjoint analysis is a preference-measurement technique that decomposes overall product evaluations into the separate utility values — called part-worths — that respondents assign to each attribute level. Formalised by Green and Srinivasan in their seminal 1978 Journal of Consumer Research paper, the method has become the dominant tool in marketing research and product design for quantifying what buyers truly trade off when they choose between options.	Response Surface Methodology is a collection of statistical and mathematical techniques for building an empirical second-order polynomial model that relates a continuous response variable to two or more controllable input factors, and then locating the factor settings that optimize that response. The approach was introduced by George E. P. Box and K. B. Wilson in their landmark 1951 paper and has since become a cornerstone of process optimization across engineering, chemistry, food science, and pharmaceutics.