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Randomized Trials

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The major purpose of random assignment in a clinical trial is to reduce selection bias in the allocation of treatment.

Why is "help ensure that study subjects are representative of the general population" not a correct choice for an answer?

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The major purpose of random assignment in a clinical trial is to reduce selection bias in the allocation of treatment is determined.

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The "population" that is studied in a clinical trial is not the same as the general population. For example, say that we're doing a study of breast cancer treatment. We would select a sample (and randomly assign people ...

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