Vertaile menetelmiä

	2^(k-p) osittainen faktorikoeasetelma	Lohkorakenteinen koeasetelma
Tieteenala	Koesuunnittelu	Koesuunnittelu
Menetelmäperhe	Hypothesis test	Hypothesis test
Syntyvuosi	1961	1935
Kehittäjä	George E. P. Box and J. Stuart Hunter	Frank Yates
Tyyppi	Screening and economical factorial design	Parametric mixed-model ANOVA
Alkuperäislähde	Box, G.E.P. & Hunter, J.S. (1961). The 2^(k-p) Fractional Factorial Designs. Technometrics, 3(3), 311–351.	Yates, F. (1935). Complex Experiments. Supplement to the Journal of the Royal Statistical Society, 2(2), 181–247.
Rinnakkaisnimet	2^k-p design, fractional factorial, screening design, Kesirli Faktöriyel Desen (2^k-p Fractional Factorial)	split-plot ANOVA, whole-plot sub-plot design, Bölünmüş Parsel Deseni (Split-Plot)
Liittyvät	7	6
Tiivistelmä	The fractional factorial design is an economical experimental strategy that investigates k factors by running only a carefully chosen 1/2^p fraction of the full 2^k factorial experiment. Formalized by George E. P. Box and J. Stuart Hunter in their landmark 1961 Technometrics paper, it exploits the sparsity-of-effects principle — that high-order interactions are typically negligible — to screen many factors with far fewer runs than a complete factorial would require.	The split-plot design is a parametric experimental design that applies one factor to large whole plots and a second factor to subdivisions (sub-plots) within each whole plot. It was introduced by Frank Yates in 1935 to handle agricultural experiments where one factor — such as irrigation or tillage method — is difficult or impractical to change frequently, while a second factor can be varied more easily within the same plot.