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Read the following statements about randomized blocked experiments and matched pair experiments.

Which of the following statements is false?


Blocks should be formed on variables that cannot otherwise be controlled, such as age or gender.


A randomized block study in which all blocks have exactly two subjects is a type of matched pair study.


A matched pair study is an advantageous experiment design because it is a simple design that controls for a large number of variables.


When a research team is able to foresee a confounding variable, it should block on that variable.


At the end of a randomized block experiment, it is most important to compare the blocks to each other.

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