قارن الطرق

	تجربة عاملية بعمى أحادي	التجربة المعشاة ذات الشواهد (RCT)
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Hypothesis test
سنة النشأة	Factorial design: 1926; single-blinding as systematic practice: mid-20th century	1948
صاحب الطريقة	Fisher, R. A. (factorial design); blinding practices formalized in clinical trials literature (20th century)	James Lind (early precursor, 1747); modern formulation: Austin Bradford Hill & Medical Research Council (1948)
النوع	Controlled experimental design	Interventional comparative study
المصدر التأسيسي	Montgomery, D. C. (2017). Design and Analysis of Experiments (9th ed.). Wiley. ISBN: 978-1119113478	Schulz, K.F., Altman, D.G., Moher, D., for the CONSORT Group (2010). CONSORT 2010 Statement: Updated Guidelines for Reporting Parallel Group Randomised Trials. BMJ, 340, c332.
الأسماء البديلة	single-masked factorial trial, single-blind factorial design, SB factorial experiment	RCT, randomised controlled trial, clinical trial, Randomize Kontrollü Çalışma (RCT) Tasarımı
ذات صلة	5	7
الملخص	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 randomized controlled trial (RCT) is the gold standard experimental design in clinical and health research, in which participants are randomly allocated to a treatment group or a control group so that the effect of an intervention can be measured with the highest possible degree of internal validity. The modern parallel-group RCT was formalized by Austin Bradford Hill and the Medical Research Council in their landmark streptomycin trial of 1948, and its reporting is governed today by the CONSORT 2010 guidelines (Schulz et al., 2010).