So sánh phương pháp

	Thí nghiệm phòng thí nghiệm theo khối	Thiết kế Lập phương Latin và Lập phương Greco-Latin
Lĩnh vực	Thiết kế thí nghiệm	Thiết kế thí nghiệm
Họ	Process / pipeline	Hypothesis test
Năm ra đời	1926–1935	1935
Người khởi xướng	Ronald A. Fisher	Ronald A. Fisher
Loại	Controlled experimental design with blocking	Parametric blocked ANOVA
Công trình gốc	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.	Montgomery, D. C. (2017). Design and Analysis of Experiments (9th ed.). Wiley. ISBN: 978-1119492443
Tên gọi khác	blocked lab experiment, laboratory randomized block design, RBD laboratory study, blocked within-lab experiment	Latin Square, Greco-Latin Square, Latin Kare ve Greco-Latin Kare Deseni
Liên quan	5	5
Tóm tắt	A blocked laboratory experiment is a controlled laboratory study in which experimental units are grouped into homogeneous blocks before treatment assignment, and treatments are then randomly assigned within each block. Blocking removes the influence of a known nuisance variable — such as participant batch, equipment run, or testing day — from the error term, increasing the precision of treatment comparisons without expanding sample size.	The Latin square design is a blocked experimental design that simultaneously controls two independent nuisance factors — the row block and the column block — so that each treatment appears exactly once in every row and every column of an n×n arrangement. Formalised by Ronald A. Fisher in his 1935 monograph The Design of Experiments, the design dramatically reduces experimental error by absorbing variation from two extraneous sources before the treatment effects are estimated.