قارن الطرق

	تصميم التجربة بالعاملين مع مجموعة ضابطة	التجربة العاملية
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1926–1935	1926–1935
صاحب الطريقة	Ronald A. Fisher	Ronald A. Fisher
النوع	Experimental design	Quantitative experimental design
المصدر التأسيسي	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.
الأسماء البديلة	factorial controlled experiment, factorial design with control, factorial RCT with control arm, multi-factor controlled experiment	factorial design, factorial ANOVA design, multi-factor experiment, crossed-factor design
ذات صلة	6	6
الملخص	A factorial control group experimental design crosses two or more independent variables (factors) in a fully factorial structure while including at least one condition that serves as a no-treatment or standard-treatment control. This allows researchers to simultaneously estimate the main effect of each factor, their interactions, and the size of those effects relative to a meaningful baseline, maximising both causal precision and experimental efficiency.	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.