Double-Blind Randomized Controlled Trial (RCT) is a quantitative study. In this type of study, a hypothesis or theory is tested through a trial. People called subjects are selected indiscriminately for an intervention. Some receive the intervention, while others don’t, or they receive a placebo. The findings from both groups are compared and outcomes or result is drawn. The Double-Blind Randomized Controlled Trial (RCT) is an established method of objective scientific study, which is an acceptable as a way of research in the field of medicine. In a perfect scenario, it creates unbiased findings and results. This means that this kind of research doesn’t rest on theories but explores their validity as well as the existing research that isn’t that accurate or thorough.  It also explores the possibility that there might have been some bias involved in a so-called unbiased method. In conducting researches, RCT is an efficient and powerful means of research, specially for clinical research.