手法を比較

	単盲検要因実験	実験計画法における分割実験
分野	実験計画法	実験計画法
系統	Process / pipeline	Process / pipeline
提唱年	Factorial design: 1926; single-blinding as systematic practice: mid-20th century	1945 (Finney); broader development 1950s–1970s by Box, Hunter
提唱者	Fisher, R. A. (factorial design); blinding practices formalized in clinical trials literature (20th century)	D. J. Finney (formal development); foundations in Ronald Fisher's factorial design work
種類	Controlled experimental design	Quantitative experimental design
原典	Montgomery, D. C. (2017). Design and Analysis of Experiments (9th ed.). Wiley. ISBN: 978-1119113478	Box, G. E. P., Hunter, J. S., & Hunter, W. G. (2005). Statistics for Experimenters: Design, Innovation, and Discovery (2nd ed.). Wiley-Interscience. ISBN: 978-0471718130
別名	single-masked factorial trial, single-blind factorial design, SB factorial experiment	fractional factorial design, FFD, 2^(k-p) design, fractional replication
関連	5	4
概要	A single-blind factorial experiment combines factorial design — simultaneously varying two or more independent factors across all their level combinations — with single-blinding, in which participants are unaware of which treatment condition they have been assigned to while researchers and administrators remain unmasked. This design enables efficient estimation of main effects and interactions while reducing participant-side response bias.	A fractional factorial experiment is a resource-efficient experimental design that tests only a carefully chosen fraction of all possible factor-level combinations. By exploiting the principle that high-order interactions are usually negligible, it identifies the main effects and low-order interactions of k factors using far fewer runs than a full factorial design — making it the workhorse of industrial and engineering screening experiments.