Question

some studies have shown that peppermint odor increases peoples mental sharpness, especially when they solve math problems. which best describes how this could be a valid scientific claim? if it is tested in a controlled setting with repeated results if the test is published on wikipedia if the scientist was previously peer - reviewed if the math problems are easy problems

Explanation:

A valid scientific claim requires testing in a controlled setting with repeatable results. Peer - review by other scientists also adds credibility. Publishing on Wikipedia is not a mark of scientific validity, and the difficulty of math problems is not relevant to the scientific claim about peppermint odor.

Answer:

if it is tested in a controlled setting with repeated results, if the scientist was previously peer - reviewed