Mental and Physical is the answer!
Natural influences:<em> Heavy snow fall, icy roads/streets, heavy rain/sleet.</em>Human influences: <em> Traffic, a car/bus accident, power goes out. Hope this helps!</em>-Autumn
Answer:
it would be ideal to split the test into 4 different groups
Explanation:
To better test the effects of the drug at different doses, it is important to consider the standard of the scientific method in testing.
Control testing is important in the first group of patients to take no drugs, in the second group of patients taking a placebo, in the third group of patients taking a 300 mg dose of the drug, and finally in the fourth group one dose of 500 mg. This wide range of doses and placebos not only shows better data, but creates a basis for better comparison of the final results.
