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

Which of the following statements is false?

A

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

B

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

C

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

D

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

E

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

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