Research results showed that experimental drug r had a minimal to modest effect in reducing the symptoms of generalized anxiety disorder (gad). the hypothesis that 200 mg of drug r will reduce gad symptoms by 25 percent, as evidenced by the hamilton anxiety scale, needs to be revised by increasing the dosage to 300 mg. the variable that will change in response to the increase is the

The variable that will change in response are the GAD symptoms

Explanation:

We have two variables here, the independent variable ,which is the Drug R  dosage and the dependent variable which are the GAD's symptoms measured in the Hamilton Anxiety scale. So then, the variable that should change in function of the Drug R dosage are the symptoms of Anxiety

answer; i believe the correct answer is ( mediation);