What advantage(s)does random assignment have over matching?

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Quizplus · Accepted Answer

Random assignment allows for greater internal validity by ensuring that any differences between and within the groups are not systematic at the outset of the experiment, making it easier to attribute any differences in outcomes to the treatment itself rather than to pre-existing differences. It is also generally easier to implement than matching, which requires finding participants that are similar across various dimensions. Precision is enhanced because random assignment helps to ensure that the groups are comparable, which allows for more accurate attribution of effects to the experimental manipulation.

What Advantage(s)does Random Assignment Have Over Matching