Biostatistics & Study Design USMLE Step 1 Practice Question
A multicenter trial enrolls patients with acute decompensated heart failure in waves of 4 at each site. Within each group of 4, exactly 2 patients are assigned to the new diuretic strategy and 2 to standard care. Which design feature is being used to maintain balance in treatment allocation over time?
Answer choices
- ACross over design
- BSimple randomization
- CStratified randomization
- DCluster randomization
- EBlock randomizationCorrect answer
- FMinimization
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