What is the main purpose of randomization in an RCT?, increase sample size, To reduce selection bias, To make analysis easier, To ensure equal follow-up, Which study design provides the highest level of evidence for treatment effectiveness?, Cross-sectional study, Case-control study, Cohort study, Randomized controlled trial, Which of the following is an example of true randomization?, Alternating patients, Allocation by date of birth, Tossing a coin, Allocation by day of visit, What is meant by “blinding” in an RCT?, Hiding the study results, Concealing group allocation from participants or investigators, Selecting patients randomly, Ensuring follow-up is complete, Which phase of a clinical trial usually first involves humans?, Phase I, Phase II, Phase III, Phase IV
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