Question: In a single blind study what is the blindness issue? Researchers do not know who has been assigned to any condition, data is analyzed before

In a single blind study what is the blindness issue? Researchers do not know who has been assigned to any condition, data is analyzed before any decisions are made about the success of either group, typically participants do not know if they are in the drug or placebo condition, data is being collected by someone who knows the group assignments

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