Multiple Groups The main advantage of using block randomization instead of random assignment to place subjects in treatment groups is that
A)block randomization ensures an equal number of subjects in each condition.
B)block randomization does not use a random number table.
C)block randomization is simpler to perform than random assignment.
D)block randomization provides superior control of subject variables.

Question

Quizplus · Accepted Answer

Block randomization ensures that each treatment group has an equal number of subjects, which helps in maintaining balance across groups, especially important in smaller studies to reduce variability and potential bias.

Multiple Groups the Main Advantage of Using Block Randomization Instead