Question

Researchers wanted to study whether or not Botox injected under the arms can reduce sweating. Which of these is a matched pairs design?

Answer 1

The option that's a matched pairs design in the research is B. For each subject, one underarm is injected with Botox, and the other with salt water.

How to illustrate the information?

A matched pair design is used when there are only two treatment conditions in the experiment, and the subject of the experiment is such that it can be grouped into pairs.

In this case, the option that's a matched pairs design in the research is that for each subject, one underarm is injected with Botox, and the other with salt water

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Researchers wanted to study whether or not Botox injected under the arms can reduce sweating.

Which of these is a matched pairs design?

A: Randomly assign the underarms of some subjects to be injected with Botox, and those of other subjects with salt water.

B: For each subject, one underarm is injected with Botox, and the other with salt water.