Why bother conducting experiments on treatments for COVID-19 (e.g., chloroquine) instead of relying on anecdotal evidence about their effectiveness? Random assignment is discussed.

Although clustered assignment increases sampling variability in observational studies, as it does in randomized experiments, it also tends to decrease sensitivity to unmeasured biases, and as the ...

Furthermore, the use of random assignment may have obviated the need for a pretreatment biopsy in this study, thereby reducing both patient risk and study cost. In this study, a statistically greater ...

Randomization preference. A large majority of parents, 72% (95% confidence interval 66–78%) and adult multiples, 82% (95% confidence interval 78–86%) had a preference regarding the ...

Alicia Dailey Cooperman, Randomization Inference with Rainfall Data, Political Analysis, Vol. 25, No. 3 (July 2017), pp. 277-288 ...

Purpose To examine stability versus change in parental understanding of random assignment in randomized clinical trials (RCTs) for pediatric leukemia and to identify factors associated with changes in ...