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	Enkelt blindat faktorförsök	Faktoriell experiment
Ämnesområde	Försöksplanering	Försöksplanering
Familj	Process / pipeline	Process / pipeline
Ursprungsår	Factorial design: 1926; single-blinding as systematic practice: mid-20th century	1926–1935
Upphovsperson	Fisher, R. A. (factorial design); blinding practices formalized in clinical trials literature (20th century)	Ronald A. Fisher
Typ	Controlled experimental design	Quantitative experimental design
Ursprungskälla	Montgomery, D. C. (2017). Design and Analysis of Experiments (9th ed.). Wiley. ISBN: 978-1119113478	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.
Alias	single-masked factorial trial, single-blind factorial design, SB factorial experiment	factorial design, factorial ANOVA design, multi-factor experiment, crossed-factor design
Närliggande	5	6
Sammanfattning	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 factorial experiment is an experimental design in which two or more independent variables (factors) are manipulated simultaneously, and every combination of their levels is tested. Introduced by Ronald Fisher in the 1920s–1930s, it is the standard approach whenever a researcher needs to detect not only the main effect of each factor but also whether the effect of one factor depends on the level of another — the interaction effect.