The major purpose of random assignment in a clinical trial is to reduce selection biasin the allocation of treatment.
Why is “help ensure that study subjects are representative of the general population” not a correct choice for an answer?
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 …
The major purpose of random assignment in a clinical trial is to reduce selection bias in the allocation of treatment is determined.