Which of the following describes a critical component of a “fair test”?
a fair test should include several confounders.
a fair test will always support the scientist’s hypothesis.
a fair test should have a specific methodology for data collection.
a fair test should study something previously not understood, like an aspect of human behavior.

A fair test should have a specific methodology for data collection.

Explanation:

A fair test should be carried out without prejudice or bias. This means that the outcome would be accepted and not influenced by the researcher. To achieve this, there must be a specific methodology for data collection to avoid any form of influence.

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