Question

Suppose you want to test the effectiveness of a certain drug for treating a disease that said you wanted to see if using the drug is better the standard treatment used to like 150 patients to give the drug and 150 patients to give the standard treatment name at least five factors you should control for in your samples to make the test more random

Answer 1

Five factors that should be controlled are the dose of the medicine, the time the patients take this medicine, their diet, the stage of this disease and medicine composition.

Why should some factors be controlled?

This is done to avoid bias or imprecise results.

What factors should be controlled?

Factors related to the medicine itself and factors that can affect the results should be controlled. This includes:

• The dose given to the patients.
• The stage of the disease that should be similar for all patients.
• The medicine compositon and manufacturer.
• The number of day patients take the medicine.
• The patients' diet.

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