Question

A company that manufactures drugs used to treat heart disease wants to determine if a new drug and exercise can affect cholesterol levels. What are the independent variable (IV) and the dependent variable (DV) in this proposed study?

Answer 1

The dependent variable - the cholesterol level

Independent variables are the exercise and the drug.

Explanation:

A variable is a factor that can be modified or change. It is the factor that can be measured, altered, controlled in research or the experiment. It can be dependent or independent of their effect.

The independent variable is the factor of the experiment that controlled or manipulated by the researcher and it is considered to have a direct effect on the dependent variable whereas the dependent variable is being checked or tested.

So, in this experiment, the variable that is being tested is the cholesterol level that means it is a dependent variable. The independent variable here is exercise and drug as they manipulate and have an effect on the direct variable.

Thus, the correct answer is -

The dependent variable -the cholesterol level and

independent variables - exercise and the drug.