Randomisation
In Running the trial
Also known as: randomization
Randomization is assigning participants to trial arms by chance rather than by choice. It spreads both known and unknown differences evenly across the groups, so any difference in outcome is more likely to be due to the treatment. The allocation sequence must be concealed from the people enrolling participants.
Example
A site enrolls a participant in the IRT system, which returns the next allocation from a pre-generated list. Nobody at the site can see or influence what comes next.
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