Answer:
In this context, the reduction of GAD symptoms is the dependent variable.
Explanation:
In this experiment, drug R dose is the independent variable and the reduction of GAD symptoms is the dependent variable. The increase in drug dose is negatively associated with decrease in GAD symptoms. At 200 mg Drug R dose had a minimal effect on GAD symptoms. However, increase in drug dose to 300 mg had a marked decrease in GAD symptoms making the independent and dependent variable inversely proportional.