Question

To see if baldness in men is caused by a high protein diet, a scientific researcher provides one group of 50 men a diet which includes the normal AMDR range for protein (10-35%). The researchers provide a second group of 50 men with a high protein diet, containing above 50% protein. What is the variable for which this experiment’s results will be based upon?

a.
Whether or not the men develop baldness

b.
The amount of protein in the men’s diets

c.
The age of the men and amount of water they are given to drink

d.
The number of men in each group

Answer 1

The variable for which this experiment's results will be based upon is:

a. Whether or not the men develop baldness

The researcher is investigating if a high protein diet is a potential cause of baldness in men. Therefore, the variable of interest is whether or not the men develop baldness, and the study is comparing two groups of men with different levels of protein in their diets to see if there is a significant difference in baldness rates.

While other factors such as age, water intake, and the number of men in each group may also be controlled or monitored during the study, they are not the main variable of interest for this particular experiment.