השוואת שיטות

	עיצוב ניסויי של קבוצת ביקורת עם סמיות יחידה	ניסוי מבוקר אקראי (RCT)
תחום	תכנון ניסויים	תכנון ניסויים
משפחה	Process / pipeline	Hypothesis test
שנת המקור	Mid-20th century (blinding standards consolidated ~1950s–1970s)	1948
הוגה השיטה	Classical experimental tradition; blinding formalized in 20th-century clinical trial methodology	James Lind (early precursor, 1747); modern formulation: Austin Bradford Hill & Medical Research Council (1948)
סוג	Controlled experimental design	Interventional comparative study
מקור מכונן	Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference. Houghton Mifflin. ISBN: 978-0395615560	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.
כינויים	single-masked controlled experiment, single-blind controlled trial, SB-CGD, single-blind parallel-group design	RCT, randomised controlled trial, clinical trial, Randomize Kontrollü Çalışma (RCT) Tasarımı
קשורות	6	7
תקציר	A single-blind control group experimental design is a controlled experiment in which participants are kept unaware of whether they are receiving the active treatment or a control condition, while researchers and outcome assessors remain unmasked. The design uses a designated control group as the baseline for comparison, allowing causal inference about the treatment effect while limiting participant-driven response biases such as the placebo effect and demand characteristics.	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).