Randomization
is an important aspect of randomized clinical trials (RCTs). Allocation to treatment groups has to occur truly at random. Randomization has three major advantages: 1) it eliminates selection bias, 2) it permits the use of probability theory to…
https://aph-qualityhandbook.org/set-up-conduct/methods-data-collection/2-2-quantitative-research/2-2-4-sampling/randomization/